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Exam (elaborations)

MEDSCI 142 Exam Questions With Correct Answers

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  • MEDSCI 142

MEDSCI 142 Exam Questions With Correct Answers The cerebral hemispheres are connected internally by the: - answercorpus callosum The primary motor area of the cerebral cortex is located in the: - answerprecentral gyrus Lower motor neurons are located in the: - answerventral horn of the spinal c...

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  • October 18, 2024
  • 47
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MEDSCI 142
  • MEDSCI 142
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sirjoel
©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM



MEDSCI 142 Exam Questions With Correct
Answers


The cerebral hemispheres are connected internally by the: - answer✔corpus callosum


The primary motor area of the cerebral cortex is located in the: - answer✔precentral gyrus


Lower motor neurons are located in the: - answer✔ventral horn of the spinal cord


The primary somatosensory cortex is located in the: - answer✔parietal Lobe


The factor most affecting the rate of impulse conduction is the: - answer✔presence or absence of

a myelin sheath

The cell bodies of first-order neurons in the posterior column-medial lemniscus pathway to the

cortex are located in the: - answer✔posterior root ganglia of spinal nerves


The medial lemniscus is a projection tract of second-order neurons extending from the: -

answer✔medulla to the thalamus


What symptoms results from a lesion of the primary motor cortex on the left side of the brain? -

answer✔a spastic paralysis on the right side of the body

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


The compound that most often acts as a second messenger is: - answer✔cyclic AMP


What is the neurotransmitter is used by pre-ganglionic nerve axons of both the sympathetic and

parasympathetic divisions of the autonomic nervous system? - answer✔Acetylcholine


What connects the hypothalamus to the pituitary gland? - answer✔the infundibulum


After a satisfying lunch, you are likely to experience the results of: - answer✔Upregulated

parasympathetic system activation


Releasing and inhibiting hormones are produced by the: - answer✔hypothalamus to control the

anterior pituitary


The specific effect of a water-soluble hormone on a target cell depends on the: - answer✔specific

protein kinase activated.


When a steroid hormone binds to its target cell receptor, it: - answer✔turns specific genes of the

nuclear DNA on or off.


The anterior pituitary gland: - answer✔synthesises at least 7 different hormones critical in the

regulation of all aspects of homeostasis

During your rat dissection lab, which of the following structures had the most vascular

appearance?

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


a) The spleen

b) The pancreas

c) The Stomach


d) The liver - answer✔The spleen


The duodenum receives material from which three organs? - answer✔stomach, liver & pancreas


During a rat dissection, a student encounters a tubular part of the gut. The student observes that

most of this tubular section lies outside the abdominal cavity, and she is told that transport is the

main function of the section. Little absorption or secretion occurs there. Is the following

statement true "it does not receive secretions from either the liver or the pancreas"? -

answer✔TRUE


Which organ is NOT associated with the digestive system?




a) the oesophagus

b) the spleen

c) the pancreas


d) the stomach - answer✔spleen


The frontal lobe of the brain contains:

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM




a) Wernicke's area

b) Supramarginal gyrus

c) Broca's area


d) Calcarine sulcus - answer✔Broca's area


First-order sensory neurons conduct impulses from: - answer✔a receptor to the CNS


The posterior (dorsal) root ganglion is: - answer✔NOT THE the roots of spinal nerves hanging

inferiorly from the inferior end of the spinal cord in the vertebral column.


Cell bodies of motor neurons to skeletal muscles are located in the: - answer✔anterior gray horns


Third-order sensory neurons in the posterior column-medial lemniscus pathway extend from the:

- answer✔thalamus to the somatosensory area of the cerebral cortex


Paracrines are: - answer✔local hormones that act on neighboring cells


Lipid soluble hormones: - answer✔must dissociate from a transporter protein in order to leave

the blood stream

A person with a chronically activated sympathetic autonomic nervous system pathway is likely

to have all of the following EXCEPT: - answer✔elevated rate of salivation


Identify the organ that is NOT associated with the peritoneum in the Rat. - answer✔gall bladder

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