Vision Physiology practice questions

Question: When comparing the nervous system to the endocrine system, which of the following applies to the endocrine system?

Answer Options:
A) Endocrine system has more localized and long-lasting effects.
B) Endocrine system has more localized and short-term effects.
C) Endocrine system has more widespread and long-lasting effects.
D) Endocrine system has more widespread and short-term effects.

Answer: C) Endocrine system has more widespread and long-lasting effects.

Question: What hormone causes contraction of uterine smooth muscle and myoepithelial cells of milk-secreting glands?

Answer Options:
A) PTH
B) GH
C) PRL
D) OT

Answer: D) OT

Question: What region of the retina provides the sharpest vision?

Answer Options:
A) Ciliary body
B) Optic disc
C) Conjunctiva
D) Fovea centralis

Answer: D) Fovea centralis

Question: What type of conduction pattern is called when ten or more pre-synaptic neurons conduct impulses to five or fewer post-synaptic neurons?

Answer Options:
A) Convergent
B) Divergent
C) Parallel
D) Emergent

Answer: A) Convergent

Question: A patient presents to his doctor with a constricted pupil, drooping eyelid, and lack of sweating on one side of their face. The diagnosis is Horner’s syndrome. Damage to what part of the nervous system caused this issue?

Answer Options:
A) Somatic nervous system
B) Sympathetic nervous system
C) Parasympathetic nervous system

Answer: B) Sympathetic nervous system

Question: Which hormone is NOT produced by the placenta?

Answer Options:
A) Estrogen
B) Testosterone
C) Gonadotropin
D) Progesterone

Answer: B) Testosterone

Question: What hormone raises blood calcium levels, stimulates osteoclasts, and increases absorption of dietary calcium?

Answer Options:
A) Insulin
B) Parathyroid hormone
C) Calcitonin
D) Aldosterone

Answer: B) Parathyroid hormone

Question: Which of the following can result in conductive hearing loss?

Answer Options:
A) Damage to the cochlear hair cells
B) A torn tympanic membrane
C) A tumor in the brain
D) Damage to the vestibulocochlear nerve

Answer: B) A torn tympanic membrane

Question: What is the action of thymosin hormones?

Answer Options:
A) They stimulate production of sex cells.
B) They regulate production of T3 and T4.
C) They regulate sleep-wake cycles.
D) They stimulate production of immune cells.

Answer: D) They stimulate production of immune cells

Question: What is the immediate result of stimulation of the hair cells of the spiral organ?

Answer Options:
A) Deformation of the tectorial membrane
B) Release of neurotransmitter
C) Stimulation of motor neurons in the vestibulocochlear nerve
D) Formation of otoliths

Answer: B) Release of neurotransmitter

Question: What lipid biochemicals are synthesized from arachidonic acid and have many diverse effects?

Answer Options:
A) G proteins
B) Prostoglandins
C) Cholesterol
D) Steroids

Answer: B) Prostoglandins

Question: Sound vibrations within the cochlea cause vibration of the _blank, which in turn causes the hairs of the spiral organ to move back and forth against the _blank. The result is deformation of the hairs.

Answer Options:
A) basilar membrane; tectorial membrane
B) tectorial membrane; basilar membrane
C) basilar membrane; tympanic membrane
D) oval window; round window

Answer: Correct Answer (Fill in the Blanks): basilar membrane; tectorial membrane
Correct Answer (Multiple Choice): A) basilar membrane; tectorial membrane

Question: The spread of a respiratory infection to the middle ear, causing an ear infection, can occur due to the presence of what structure?

Answer Options:
A) Auditory tube
B) External acoustic meatus
C) Tympanic membrane
D) Auditory ossicles

Answer: A) Auditory tube

Question: The fovea centralis and macula lutea are part of what layer of the wall of the eye?

Answer Options:
A) Sclera
B) Middle layer
C) Choroid coat
D) Retina

Answer: D) Retina

Question: What photopigment is found in the rods of the retina?

Answer Options:
A) Rhodopsin
B) Cyanolabe
C) Visual blue
D) Erythrolabe

Answer: A) Rhodopsin

Question: The olfactory receptors are examples of what class of receptor?

Answer Options:
A) Chemoreceptors
B) Proprioceptors
C) Thermoreceptors
D) Mechanoreceptors

Answer: A) Chemoreceptors

Question: How do steroid hormones produce their effects?

Answer Options:
A) By activating genes
B) By producing cyclic AMP
C) By activating the formation of adenylate cyclase
D) By combining with receptors on the surfaces of cell membranes

Answer: A) By activating genes

Vision Physiology practice questions

Question: When comparing the nervous system to the endocrine system, which of the following applies to the endocrine system?

Question: What hormone causes contraction of uterine smooth muscle and myoepithelial cells of milk-secreting glands?

Question: What region of the retina provides the sharpest vision?

Question: What type of conduction pattern is called when ten or more pre-synaptic neurons conduct impulses to five or fewer post-synaptic neurons?

Question: A patient presents to his doctor with a constricted pupil, drooping eyelid, and lack of sweating on one side of their face. The diagnosis is Horner’s syndrome. Damage to what part of the nervous system caused this issue?

Question: Which hormone is NOT produced by the placenta?

Question: What hormone raises blood calcium levels, stimulates osteoclasts, and increases absorption of dietary calcium?

Question: Which of the following can result in conductive hearing loss?

Question: What is the action of thymosin hormones?

Question: What is the immediate result of stimulation of the hair cells of the spiral organ?

Question: What lipid biochemicals are synthesized from arachidonic acid and have many diverse effects?

Question: Sound vibrations within the cochlea cause vibration of the _________blank, which in turn causes the hairs of the spiral organ to move back and forth against the _________blank. The result is deformation of the hairs.

Question: The spread of a respiratory infection to the middle ear, causing an ear infection, can occur due to the presence of what structure?

Question: The fovea centralis and macula lutea are part of what layer of the wall of the eye?

Question: What photopigment is found in the rods of the retina?

Question: The olfactory receptors are examples of what class of receptor?

Question: How do steroid hormones produce their effects?

Question: Sound vibrations within the cochlea cause vibration of the _blank, which in turn causes the hairs of the spiral organ to move back and forth against the _blank. The result is deformation of the hairs.