Solved by a verified expert:University of
Phoenix Material
Final Examination
(v2)
The study of cells is
a. cytology
b. histology
c. molecular
biology
d. microbiology
e. surface
anatomy
In a positive feedback mechanism, the response of the
effector
a. reverses
the original stimulus
b. enhances the
original stimulus
c. has no
effect on the original stimulus
d. is
usually damaging to the body
e. creates
a cycle that leads away from homeostasis
Ionic bonds form when
a. atomic
nuclei fuse
b. atoms
become ionized
c. neutrons
are transferred from one atom to another
d. protons
are lost from atoms
e. electrons
are shared between two atoms
Reactions that bond atoms or molecules together are called
_______ reactions.
a.
hydration
b.
synthesis
c.
hydrolysis
d.
reversible
e.
oxidation
Sugars
a. are the
body’s source of immediate energy
b. are the
building blocks of nucleotides
c. provide
much of the structure of body cells and tissues
d. contain
the genetic information of the cell
e. insulate
and cushion the body
The nuclear envelope
a. separates
the nucleus from the rest of the cell
b. is a
rigid protein membrane
c. is not
permeable
d. has a
single layer of phospholipids
e. regulates
movement of materials into and out of the cell
Recognition proteins
a. are
binding sites for other molecules
b. utilize
the G protein complex to function
c. are
found only on endoplasmic reticulum
d. allow
cells to recognize one another
e. provide
a “door” through which extracellular molecules can enter the cell
Which of the following is a function of muscle
tissue?
a. conduction
of action potentials
b. secretion
and absorption of molecules
c. support
of other tissue types
d. contraction
e. shock
absorption
Nervous tissue
a. functions
as an insulator and a site of energy storage
b. exists
in three forms: yellow, red, and brown
c. contains
large amounts of extracellular matrix
d. is
located in the brain and spinal cord
e. does
not contain lipids
Reddening of the skin (blushing) is the result of the
a. quantity
of melanin in the skin
b. number
of keratinocytes in the skin
c. increased
blood flow in the dermis
d. thickness
of the stratum basale
e. number
of melanocytes in the skin
What does structure “A” represent on the
diagram?
a. hair
follicle
b. arrector
pili
c. dermis
d. hypodermis
e. sebaceous
gland
12. When blood calcium levels are high
a.
osteoclast activity increases
b.
calcitonin secretion increases
c.
calcium absorption is increased
d.
bones lose bone tissue
e.
osteoblast activity decreases
13. What does structure “B” represent
on the bone diagram?
a.
cancellous bone
b.
diaphysis
c.
epiphyseal lines
d.
articular cartilage
e.
epiphysis
14. What does structure “C”
represent?
a.
frontal bone
b.
occipital bone
c.
parietal bone
d.
sphenoid bone
e.
temporal bone
15. The figure illustrates bones of the right
upper limb. What does “B” represent?
a.
radius
b.
carpals
c.
phalanges
d.
metacarpals
e.
ulna
16. The figure illustrates bones of the right
lower limb. What does “A” represent?
a.
femur
b.
fibula
c.
tarsals
d.
tibia
e.
patella
17. The joint between the trochlea of the
humerus and the proximal end of the ulna is a _____ joint.
a.
plane
b.
saddle
c.
hinge
d.
pivot
e.
ball and socket
18. What does structure “B” represent
on the diagram?
a.
tendon
b.
articular cartilage
c.
bursa
d.
fibrous capsule
e.
synovial membrane
19. Which of the following is composed of actin
molecules?
a.
thick myofilaments
b.
thin myofilaments
c.
Z disks
d.
sarcolemma
e.
tropomyosin
20. What does “D” represent on the
diagram?
a.
threshold
b.
depolarization
c.
depolarization phase of action potential
d.
repolarization phase of action potential
21. The extension of the elbow represents
a
a.
class I lever system
b.
class II lever system
c.
class III lever system
d.
class IV lever system
e.
non-lever system
22. Label muscle “D” on the diagram.
a.
orbicularis oculi
b.
temporalis
c.
trapezius
d.
sternocleidomastoid
e.
masseter
23. What does “B” represent?
a.
coracobrachialis
b.
deltoid
c.
pectoralis major
d.
biceps brachii
e.
serratus anterior
24. The peripheral nervous system includes
the
a.
nerves
b.
spinal cord
c.
brain
d.
brain stem
e.
CSF
25. Identify structure “B” on the
neuron.
a.
Schwann cell
b.
Node of Ranvier
c.
neuron cell body (soma)
d.
dendrites
e.
axon
26. The figure is a process figure of the
chemical synapse. What does “A” represent?
a.
postsynaptic membrane
b.
synaptic cleft
c.
synaptic vesicle
d.
voltage-gated calcium channel
e.
presynaptic terminal
27. Which of the following plexuses gives rise
to the femoral nerve?
a.
cervical plexus
b.
thoracic plexus
c.
brachial plexus
d.
lumbar plexus
e.
coccygeal plexus
28. Label component “C” on the reflex
arc.
a.
sensory receptor
b.
effector organ
c.
sensory neuron
d.
motor neuron
e.
interneuron
29. A small lesion in the brain which resulted
in clumsy behavior would probably be located in the
a.
medulla oblongata
b.
pons
c.
cerebellum
d.
hypothalamus
e.
cerebrum
30. The midbrain
a.
consists of a broad band of gray matter
b.
is found inferior to the diencephalon
c.
is a band of commissural fibers that
connects the right cerebral hemisphere to the left cerebral hemisphere
d.
connects the frontal lobe to the occipital
lobe
e.
connects the frontal lobe to the parietal
lobe
31. Which nerve controls mastication?
a.
facial nerve
b.
vagus nerve
c.
trigeminal nerve
d.
glossopharyngeal nerve
32. Which of the following is responsible for
balance ?
a.
nose
b.
tongue
c.
skin
d.
ear
e.
eye
33. Label area “E” on the cerebral
cortex.
a.
visual cortex
b.
primary motor cortex
c.
primary somatic sensory cortex
d.
motor speech area (Broca’s area)
e.
sensory speech area (Wernicke’s area)
34. The figure is a sagittal section of the
eye. What does “B” represent?
a.
iris
b.
pupil
c.
lens
d.
conjunctiva
e.
cornea
35. Which of the following is an effector
controlled by the somatic nervous system?
a.
cardiac muscle
b.
glands
c.
skeletal muscle
d.
smooth muscle in blood vessels
e.
smooth muscle in the digestive system
36. Identify structure “C” on the
bottom diagram.
a.
autonomic ganglion
b.
somatic motor neuron
c.
effector organ (smooth muscle of GI tract)
d.
postganglionic neuron
e.
preganglionic neuron
37. The nervous system
a.
releases neurotransmitters into ducts
b.
secretes chemicals that reach their targets
through the bloodstream
c.
communicates via frequency-modulated
signals
d.
contains organs called exocrine glands
e.
is isolated from the nervous system
38. Consider the following events in the
membrane bound receptor model:
1: Hormone receptor binds the hormone
2: G protein is triggered
3: Second messenger is produced
4: Protein kinases are activated
5: Calcium channels are opened
Which of these events occurs in the
nucleus?
a.
1, 3, 5
b.
1, 3, 4
c.
1, 2, 3
d.
3, 4, 5
e.
None of these events occur in the nucleus
39. The posterior pituitary
a.
rests in the sella turcica
b.
is also called the neurohypophysis
c.
is located inferior to the pituitary gland
d.
regulates the secretory activity of the
pituitary gland
e.
is located superior to the thalamus
40. The major secretory products of the zona
fasciculata of the adrenal cortex are
a.
glucocorticoids
b.
mineralocorticoids
c.
androgens
d.
catecholamines
e.
cortisol and ADH
Recent Comments