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Papers by JOCELYN GONZALES
Journal of International Society for Southeast Asian Agricultural Sciences, 2010
The critical nutrient uptake ability of each element in tomato plants (Solanum lycopersicum L. cv... more The critical nutrient uptake ability of each element in tomato plants (Solanum lycopersicum L. cv. Reika) grown using the Nutrient Film Technique (NFT) was investigated by descending nutrient concentration method using three seedling sizes. All the cultures started from different concentrations of nutrient solution and supplemented only with rainwater. The changes in NO3-N concentration of nutrient solution decreased right after the start of the experimental period in all the different seedling stages. The bigger plants absorbed the nutrient elements very fast and reached the final concentration faster than younger plants, but uptake by all plant stages reached almost the same final concentration. The changing patterns of the concentration of other elements were similar to those of nitrate. The uptake rates of each element were measured to determine the points for the critical uptake rate to become zero. A zero value means that the plants can no longer absorb the nutrient from the s...
Cureus, Jan 5, 2017
Direct insertion of the anterior papillary muscle (DPM) into the mitral valve is uncommon. During... more Direct insertion of the anterior papillary muscle (DPM) into the mitral valve is uncommon. During the routine dissection of an adult female, a DPM into the mitral valve with abnormal chordae tendinae was observed. This abnormal papillary muscle was measured as 28.0 mm in length from myocardial to insertion, 14.8 mm in width, and 7.0 mm in depth. The embryology, symptoms, associated cardiac diseases, and surgical precautions of this congenital malformation in the heart are reviewed.
Cureus, 2017
The levator scapulae muscle typically runs from the transverse process of the atlas to the superi... more The levator scapulae muscle typically runs from the transverse process of the atlas to the superior angle of the scapula. In this paper, we describe a rare finding identified during a dissection of a male cadaver, wherein a continuation of the right levator scapulae ran past its normal attachment to the C1 transverse process, fusing with the inferior attachment of the rectus capitis lateralis muscle. No variants were found on the opposite side, and the innervation of the levator scapulae muscle variant was typical of that of a normal levator scapulae. We also describe other related variants of the cranial levator scapulae muscle, hypothesize the embryologic origin of our finding, and finally discuss potential clinical relevance of levator scapulae muscle variants.
Cureus, 2017
Tarlov or perineural cysts are cerebrospinal fluid (CSF)-filled sacs found between the perineuriu... more Tarlov or perineural cysts are cerebrospinal fluid (CSF)-filled sacs found between the perineurium and epineurium of the nerve roots. It is still unsure whether the origin of these cysts is intradural or extradural. They can either be asymptomatic or create a variety of negative impacts on comfort and quality of life. In this case report, we describe the presentation of multiple Tarlov cysts including one large cyst discovered during a routine cadaveric spinal dissection and the relevant and related literature. To our knowledge, this is the only cadaveric case report of Tarlov cysts and offers an interesting window into their anatomy.
Child's Nervous System, 2017
Leonardo da Vinci (1452-1519) can be called one of the earliest contributors to the history of an... more Leonardo da Vinci (1452-1519) can be called one of the earliest contributors to the history of anatomy and, by extension, the study of medicine. He may have even overshadowed Andreas Vesalius (1514-1564), the so-called founder of human anatomy, if his works had been published within his lifetime. While some of the best illustrations of their time, with our modern knowledge of anatomy, it is clear that many of da Vinci's depictions of human anatomy are inaccurate. However, he also made significant discoveries in anatomy and remarkable predictions of facts he could not yet discover with the technology available to him. Additionally, da Vinci was largely influenced by Greek anatomists, as indicated from his ideas about anatomical structure. In this historical review, we describe da Vinci's history, influences, and discoveries in anatomical research and his depictions and errors with regards to the musculoskeletal system, cardiovascular system, nervous system, and other organs.
Cureus, Jan 29, 2017
Injection nerve palsy (INP) in the median nerve is an iatrogenic peripheral nerve injury that can... more Injection nerve palsy (INP) in the median nerve is an iatrogenic peripheral nerve injury that can be inflicted by a faulty intramuscular injection in the median nerve area. The literature reports a 2% incidence of INP among all peripheral nerve injuries. The incidence of INP in developed countries has decreased significantly during the past decade, but the injury appears to remain prevalent in developing countries. A deep understanding of the anatomy of the peripheral nerves, and a precise intramuscular injection technique, have been shown to be vital for preventing INP in the median nerve. Debates continue regarding what, if any, intervention is necessary for injection palsies; and if it is needed, when it should be carried out. In this article, we will review the literature related to median injection nerve palsy and recommended methods of prevention.
Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, Jan 10, 2017
Few individuals in history have exerted so great an influence and made such extensive contributio... more Few individuals in history have exerted so great an influence and made such extensive contributions to so many disciplines as Leonardo da Vinci. Da Vinci's inquisitive, experimental mentality led him to many discoveries, such as spinal cord function and the proper anatomy of several organ systems. Respected not only as an artist but also as an anatomist, he made many significant contributions to the field. This article explores da Vinci's drawings, in relation to the anatomy of the human spine.
Anatomical Science International, 2017
The lateral ponticle and epitransverse process are rare anatomical variations found on the atlas ... more The lateral ponticle and epitransverse process are rare anatomical variations found on the atlas vertebra of the cervical spine. When a lateral ponticle occurs, an abnormal bony bridge extends from the superior articular facet to the transverse process. This bony bridge bisects the transverse foramen wherein the vertebral artery normally lies. In this case report, we describe a C1 specimen from an adult male with a lateral ponticle on the right side and an epitransverse process on the left side. Additionally, an articular facet-like structure was also found on the lateral ponticle's surface. Relevant literature regarding the lateral ponticle across age groups, sex, race, and species is also reviewed. We postulate that genesis of the lateral ponticle of the atlas occurs in utero, specifically during the lateral ossification of the ventral sclerotomes. To our knowledge, an articular facet-like structure on such a ponticle has not been reported previously. Moreover, simultaneous occurrence of a lateral ponticle and contralateral epitransverse process has, to our knowledge, not been reported before.
A simple but precise method was developed to measure the amount of nutrient and water uptake. The... more A simple but precise method was developed to measure the amount of nutrient and water uptake. The nutrient uptake ability of tomato plant in NFT culture was investigated by using this method. All the treatments started with rainwater and then six different concentrations of nutrient solution were added to each system according to solution consumption. The concentration of each mineral element in the nutrient solution increased with the addition of the supplement solution until the 3rd day and thereafter leveled off until the 7th day. This indicates that when absorption concentration became in stable state, except for the ion in the highest strength solution (1 U) for potassium and magnesium elements, and that most of the newly added ions were absorbed stably by plants from low to high concentration of nutrient solution. At that point when each ion concentration in the nutrient solution reached a critical level, the tomato plants were no longer able to uptake ions from the solution, ...
Journal of International Society for Southeast Asian Agricultural Sciences, 2010
The critical nutrient uptake ability of each element in tomato plants (Solanum lycopersicum L. cv... more The critical nutrient uptake ability of each element in tomato plants (Solanum lycopersicum L. cv. Reika) grown using the Nutrient Film Technique (NFT) was investigated by descending nutrient concentration method using three seedling sizes. All the cultures started from different concentrations of nutrient solution and supplemented only with rainwater. The changes in NO3-N concentration of nutrient solution decreased right after the start of the experimental period in all the different seedling stages. The bigger plants absorbed the nutrient elements very fast and reached the final concentration faster than younger plants, but uptake by all plant stages reached almost the same final concentration. The changing patterns of the concentration of other elements were similar to those of nitrate. The uptake rates of each element were measured to determine the points for the critical uptake rate to become zero. A zero value means that the plants can no longer absorb the nutrient from the s...
Cureus, Jan 5, 2017
Direct insertion of the anterior papillary muscle (DPM) into the mitral valve is uncommon. During... more Direct insertion of the anterior papillary muscle (DPM) into the mitral valve is uncommon. During the routine dissection of an adult female, a DPM into the mitral valve with abnormal chordae tendinae was observed. This abnormal papillary muscle was measured as 28.0 mm in length from myocardial to insertion, 14.8 mm in width, and 7.0 mm in depth. The embryology, symptoms, associated cardiac diseases, and surgical precautions of this congenital malformation in the heart are reviewed.
Cureus, 2017
The levator scapulae muscle typically runs from the transverse process of the atlas to the superi... more The levator scapulae muscle typically runs from the transverse process of the atlas to the superior angle of the scapula. In this paper, we describe a rare finding identified during a dissection of a male cadaver, wherein a continuation of the right levator scapulae ran past its normal attachment to the C1 transverse process, fusing with the inferior attachment of the rectus capitis lateralis muscle. No variants were found on the opposite side, and the innervation of the levator scapulae muscle variant was typical of that of a normal levator scapulae. We also describe other related variants of the cranial levator scapulae muscle, hypothesize the embryologic origin of our finding, and finally discuss potential clinical relevance of levator scapulae muscle variants.
Cureus, 2017
Tarlov or perineural cysts are cerebrospinal fluid (CSF)-filled sacs found between the perineuriu... more Tarlov or perineural cysts are cerebrospinal fluid (CSF)-filled sacs found between the perineurium and epineurium of the nerve roots. It is still unsure whether the origin of these cysts is intradural or extradural. They can either be asymptomatic or create a variety of negative impacts on comfort and quality of life. In this case report, we describe the presentation of multiple Tarlov cysts including one large cyst discovered during a routine cadaveric spinal dissection and the relevant and related literature. To our knowledge, this is the only cadaveric case report of Tarlov cysts and offers an interesting window into their anatomy.
Child's Nervous System, 2017
Leonardo da Vinci (1452-1519) can be called one of the earliest contributors to the history of an... more Leonardo da Vinci (1452-1519) can be called one of the earliest contributors to the history of anatomy and, by extension, the study of medicine. He may have even overshadowed Andreas Vesalius (1514-1564), the so-called founder of human anatomy, if his works had been published within his lifetime. While some of the best illustrations of their time, with our modern knowledge of anatomy, it is clear that many of da Vinci's depictions of human anatomy are inaccurate. However, he also made significant discoveries in anatomy and remarkable predictions of facts he could not yet discover with the technology available to him. Additionally, da Vinci was largely influenced by Greek anatomists, as indicated from his ideas about anatomical structure. In this historical review, we describe da Vinci's history, influences, and discoveries in anatomical research and his depictions and errors with regards to the musculoskeletal system, cardiovascular system, nervous system, and other organs.
Cureus, Jan 29, 2017
Injection nerve palsy (INP) in the median nerve is an iatrogenic peripheral nerve injury that can... more Injection nerve palsy (INP) in the median nerve is an iatrogenic peripheral nerve injury that can be inflicted by a faulty intramuscular injection in the median nerve area. The literature reports a 2% incidence of INP among all peripheral nerve injuries. The incidence of INP in developed countries has decreased significantly during the past decade, but the injury appears to remain prevalent in developing countries. A deep understanding of the anatomy of the peripheral nerves, and a precise intramuscular injection technique, have been shown to be vital for preventing INP in the median nerve. Debates continue regarding what, if any, intervention is necessary for injection palsies; and if it is needed, when it should be carried out. In this article, we will review the literature related to median injection nerve palsy and recommended methods of prevention.
Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery, Jan 10, 2017
Few individuals in history have exerted so great an influence and made such extensive contributio... more Few individuals in history have exerted so great an influence and made such extensive contributions to so many disciplines as Leonardo da Vinci. Da Vinci's inquisitive, experimental mentality led him to many discoveries, such as spinal cord function and the proper anatomy of several organ systems. Respected not only as an artist but also as an anatomist, he made many significant contributions to the field. This article explores da Vinci's drawings, in relation to the anatomy of the human spine.
Anatomical Science International, 2017
The lateral ponticle and epitransverse process are rare anatomical variations found on the atlas ... more The lateral ponticle and epitransverse process are rare anatomical variations found on the atlas vertebra of the cervical spine. When a lateral ponticle occurs, an abnormal bony bridge extends from the superior articular facet to the transverse process. This bony bridge bisects the transverse foramen wherein the vertebral artery normally lies. In this case report, we describe a C1 specimen from an adult male with a lateral ponticle on the right side and an epitransverse process on the left side. Additionally, an articular facet-like structure was also found on the lateral ponticle's surface. Relevant literature regarding the lateral ponticle across age groups, sex, race, and species is also reviewed. We postulate that genesis of the lateral ponticle of the atlas occurs in utero, specifically during the lateral ossification of the ventral sclerotomes. To our knowledge, an articular facet-like structure on such a ponticle has not been reported previously. Moreover, simultaneous occurrence of a lateral ponticle and contralateral epitransverse process has, to our knowledge, not been reported before.
A simple but precise method was developed to measure the amount of nutrient and water uptake. The... more A simple but precise method was developed to measure the amount of nutrient and water uptake. The nutrient uptake ability of tomato plant in NFT culture was investigated by using this method. All the treatments started with rainwater and then six different concentrations of nutrient solution were added to each system according to solution consumption. The concentration of each mineral element in the nutrient solution increased with the addition of the supplement solution until the 3rd day and thereafter leveled off until the 7th day. This indicates that when absorption concentration became in stable state, except for the ion in the highest strength solution (1 U) for potassium and magnesium elements, and that most of the newly added ions were absorbed stably by plants from low to high concentration of nutrient solution. At that point when each ion concentration in the nutrient solution reached a critical level, the tomato plants were no longer able to uptake ions from the solution, ...