A postsynaptic neuron responds to neurotransmitters released by a presynaptic neuron by creating
a) EPSPs
b) water-filled channels in its membrane
c) IPSPs
d) either EPSPs or IPSPs
e) All the choices are correct
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Question 2) Where is the soleus?
a) A
b) C
c) E
d) I
e) H
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Question 3) Which bone develops in the tendon of the quadriceps femoris muscle and protects the knee joint?
a) Ischium
b) Ilium
c) Pubis
d) Patella
e) Femur
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Question 4) Which of the following statements about proprioception is INCORRECT?
a) Proprioceptive sensations allow us to estimate the weight of certain objects.
b) Proprioceptors are slowly adapting receptors.
c) Proprioceptors are embedded in muscles and tendons
d) Proprioceptive sensations allow us to determine position of body structures relative to each other.
e) Proprioceptive sensations are used to activate the nervous system in response to threatening situations.
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Question 5) Which brain structure is responsible for the startle reflex in response to loud sounds?
a) Superior colliculus
b) Inferior colliculus
c) Pontine nucleus
d) Medial lemniscus
e) Arbor vitae
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Question 6) In the diagram, which bone is the flat bone?
a) A
b) B
c) C
d) D
e) E
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Question 7) Which of the following are a group of lipid-soluble hormones derived from cholesterol?
a) Steroids
b) Thyroid hormones
c) Nitric oxide
d) Amine hormones
e) Peptide hormones
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Question 8) A brief contraction of all muscle fibers in a motor unit in response to a single action potential moving down the somatic motor neuron is known as
a) isometric contraction.
b) isotonic contraction.
c) tetany.
d) refractory period.
e) twitch contraction.
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Question 9) Which of the following is NOT a major function of the blood?
a) Transportation of nutrients
b) Regulation of blood pH
c) Protection against infectious disease
d) Transportation of heat
e) Production of oxygen
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Question 10) Which autonomic plexus is located anterior to the fifth lumbar vertebra and serves the pelvic viscera?
a) Inferior mesenteric plexus
b) Renal plexus
c) Celiac plexus
d) Hypogastric plexus
e) Superior mesenteric plexus
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