Download Exam Name___________________________________

Exam
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) The type of cells that form the strata in the epidermis are
1) _______
A) dendritic cells.
B) adipocytes.
C) melanocytes.
D) keratinocytes.
E) fibroblasts.
2) ________ are cells in the epidermis that are part of the immune system.
A) Squamous cells
B) Langerhan cells
C) Melanocytes
D) Basal cells
E) Merkel cells
2) _______
3) While walking barefoot on the beach, Joe stepped on a thorn that penetrated through the sole of
his foot to the dermis. How many layers of epidermis did the thorn penetrate?
A) 2
B) 4
C) 1
D) 5
E) 3
3) _______
4) Clusters of RER and free ribosomes in neurons are called
A) neurofilaments.
B) microglia.
C) perikaryon.
D) Nissl bodies.
E) neurofibrils.
4) _______
5) ________ neurons form the afferent division of the PNS.
A) Sensory
B) Neural sensory
C) Somatic sensory
D) Visceral sensory
E) Motor
5) _______
6) The function of the astrocytes in the CNS includes which of the following?
A) guiding neuron development
B) adjusting the composition of the interstitial fluid
C) maintaining the blood-brain barrier
D) repairing damaged neural tissue
E) All of the answers are correct.
6) _______
7) Opening of sodium channels in the axon membrane causes
A) hyperpolarization.
B) inhibition.
C) repolarization.
D) depolarization.
E) increased negative charge inside the membrane.
7) _______
8) Any stimulus that opens ________ ion channel will produce a graded potential.
A) a sodium
8) _______
B)
C)
D)
E)
a mechanically-gated
a chemically-gated
a voltage-gated
All of the answers are correct.
9) The sodium-potassium ion exchange pump
A) moves sodium and potassium opposite to the direction of their electrochemical gradients.
B) depends on a hydrogen gradient for energy.
C) must reestablish ion concentrations after each action potential.
D) transports potassium ions out of the cell during repolarization.
E) transports sodium ions into the cell during depolarization.
9) _______
10) Autonomic centers that control blood pressure, heart rate, and digestion are located in the
A) medulla oblongata.
B) cerebellum.
C) diencephalon.
D) pons.
E) mesencephalon.
10) ______
11) Making adjustments to maintain
balance and equilibrium are functions of the
A) cerebrum.
B) mesencephalon.
C) pons.
D) medulla oblongata.
E) cerebellum.
11) ______
12) Which of the following is a function of the hypothalamus?
A) controls autonomic centers
B) regulates body temperature
C) secretes oxytocin
D) produces ADH
E) All of the answers are correct.
12) ______
13) During sympathetic activation, ________ occurs.
A) elevated blood pressure
B) elevated blood glucose
C) elevated heart rate
D) sweating
E) All of the answers are correct.
13) ______
14) The visual cortex is located in the
A) frontal lobe.
B) insula.
C) occipital lobe.
D) parietal lobe.
E) temporal lobe.
14) ______
15) Parasympathetic functions include all of the following, except
A) stimulation of urination.
B) decrease in the rate of cardiac contraction.
C) stimulation of defecation.
15) ______
D) constriction of the pupils.
E) dilation of the airways.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
D
B
D
D
A
E
D
E
A
A
E
E
E
C
E