When the summed total of postsynaptic potentials rises above threshold, creation of action potentials occurs
a) in the synaptic cleft.
b) in the dendrites.
c) at the trigger zone.
d) in the neuron nucleus.
e) in the neuroplasm.
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Question 2) What is inflammation of one or more costal cartilage called?
a) Costochondritis
b) Arthritis
c) Cartilaginous distension
d) Otitis
e) Intercostal space distension
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Question 3) Which of the choices below is a type of hormone that acts on neighboring cells without entering the bloodstream?
1. Local hormone
2. Paracrine
3. Autocrine
4. Circulating hormone
a) 1 only
b) 2 only
c) 3 only
d) 4 only
e) Both 1 and 2
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Question 4) Which of the following consists of a somatic motor neuron and all the skeletal muscle fibers it stimulates?
a) sarcomere
b) motor unit
c) neuromuscular junction
d) muscle unit
e) multi-unit smooth muscle
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Question 5) Which of the following disorders is the most common brain disorder?
a) Transient ischemic attack
b) Alzheimer's disease
c) Cerebrovascular accident
d) Brain tumor
e) Attention deficit hyperactivity disorder
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Question 6) In some proteins, disulfide covalent bonds form between two _________ amino acids.
Fill in the blank with correct word.
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Question 7) When two or more polypeptide chains come together to give a protein its ultimate shape, that structure is described as the _________ structure.
A. micro- B. secondary C. quaternary D. tertiary E. heme group
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Question 8) The three-dimensional shape of a protein is known as its primary structure.
Indicate whether this statement is true or false.
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Question 9) The largest autonomic plexus is called the
a) superior mesenteric plexus.
b) renal plexus.
c) cardiac plexus.
d) celiac plexus.
e) hypogastric plexus.
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Question 10) Taste buds are found on
a) the epiglottis.
b) the pharynx.
c) the soft palate.
d) both epiglottis and pharynx.
e) All of these choices
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