Solved by a verified expert:University of
Phoenix Material
Final Examination
(v1)
This
is a 40-question final examination. Each question is worth 0.5 point.
The study of tissues is
a.
cytology
b. histology
c.
molecular biology
d.
microbiology
e.
surface anatomy
In a negative
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
Covalent bonds form
when
a.
atomic nuclei fuse
b.
molecules 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 use
water to split molecules apart are called _______ reactions.
a.
dehydration
b.
synthesis
c. hydrolysis
d.
reversible
e.
oxidation
Proteins
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 plasma
membrane
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
Channel
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 epithelial tissue?
a.
conduction of action potentials
b. secretion and absorption of molecules
c.
support of other tissue types
d.
contraction
e.
shock absorption
Adipose
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 composed of relatively small cells
e.
does not contain lipids
Skin color is the
result of the
a. quantity of melanin in the skin
b.
number of keratinocytes in the skin
c.
amount of fat in the hypodermis
d.
thickness of the stratum basale
e.
number of melanocytes in the skin
What does structure
“B” represent on the diagram?
a. hair follicle
b. arrector pili
c.
dermis
d. hypodermis
e. sebaceous gland
When
blood calcium levels are low
a.
osteoclast activity
increases
b. calcitonin secretion
increases
c. calcium absorption is
reduced
d. bones produce more bone
tissue
e. osteoblast activity
increases
What
does structure “A” represent on the bone diagram?
a. cancellous bone
b. Diaphysis
c. epiphyseal lines
d.
articular cartilage
e. epiphysis
What
does structure “A” represent?
a.
frontal bone
b.
occipital bone
c.
parietal bone
d.
sphenoid bone
e.
temporal bone
The
figure illustrates bones of the right upper limb. What does
“A” represent?
a. radius
b. carpals
c. phalanges
d. metacarpals
e.
ulna
The
figure illustrates bones of the right lower limb. What does
“C” represent?
a. femur
b. fibula
c. tarsals
d.
tibia
e. patella
The
joint between the head of the radius and the proximal end of the ulna is
a _____ joint.
a. plane
b. saddle
c. hinge
d.
pivot
e. ball and socket
What
does structure “A” represent on the diagram?
a. tendon
b. articular cartilage
c.
bursa
d. fibrous capsule
e. synovial membrane
Which
of the following is composed of myosin molecules?
a.
thick myofilaments
b. I Bands
c. Z disks
d. Sarcolemma
e. tropomyosin
What
does “B” represent on the diagram?
a. threshold
b. depolarization
c.
depolarization phase of
action potential
d. repolarization phase of
action potential
The
flexion 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
Label
muscle “A” on the diagram.
a. orbicularis oculi
b.
temporalis
c. trapezius
d. sternocleidomastoid
e. masseter
What
does “A” represent?
a. coracobrachialis
b.
deltoid
c. pectoralis major
d. biceps brachii
e. serratus anterior
The
central nervous system includes the
a. ganglia
b.
spinal cord
c. spinal nerves
d. cranial nerves
e. sensory receptors
Identify
structure “A” on the neuron.
a. Schwann cell
b. Node of Ranvier
c. neuron cell body (soma)
d.
dendrites
e. axon
The
figure is a process figure of the chemical synapse. What does
“C” represent?
a. postsynaptic membrane
b. synaptic cleft
c. synaptic vesicle
d. voltage-gated calcium
channel
e.
presynaptic terminal
Which
of the following combinations indicates the correct distribution of
spinal nerve pairs?
a. 7 cervical – 12 thoracic
– 6 lumbar – 5 sacral – 1 coccygeal
b. 7 cervical – 12 thoracic
– 5 lumbar – 6 sacral – 1 coccygeal
c. 8 cervical – 12 thoracic
– 6 lumbar – 4 sacral – 1 coccygeal
d.
8 cervical – 12 thoracic
– 5 lumbar – 5 sacral – 1 coccygeal
e. 7 cervical – 13 thoracic
– 6 lumbar – 5 sacral – 1 coccygeal
Label
component “A” on the reflex arc.
a. sensory receptor
b. effector organ
c. sensory neuron
d.
motor neuron
e. interneuron
A
small lesion in the brainstem which resulted in a rapid heart rate,
intense vasoconstriction, and elevated blood pressure would probably be
located in the
a.
medulla oblongata.
b. Pons
c. Cerebellum
d. Hypothalamus
e. cerebrum
The
corpus callosum
a. consists of a broad band
of gray matter
b. is found at the base of
the transverse fissure
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
Which
nerve has branches that extend to the thoracic and abdominal viscera?
a. facial nerve
b.
vagus nerve
c. trigeminal nerve
d. glossopharyngeal ner
Which
of the following is a somatic sense?
a. smell
b. taste
c.
touch
d. sound
e. sight
Label
area “A” 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)
The
figure is a sagittal section of the eye. What does “A”
represent?
a. iris
b. pupil
c. lens
d.
conjunctiva
e. cornea
Which
of the following is NOT an effector controlled by the autonomic nervous
system?
a. cardiac muscle
b. glands
c.
skeletal muscle
d. smooth muscle in blood
vessels
e. smooth muscle in the
digestive system
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
The
endocrine 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
Consider
the following events in the intracellular receptor model:
1: Hormone receptor complex binds
to DNA.
2: Messenger RNA directs synthesis of specific proteins.
3: Hormone binds to receptors either in cytoplasm or nucleus.
4: Messenger RNA synthesis is activated.
5: Synthesized proteins produce the response of the cell.
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. All events occur in the
nucleus
The
hypothalamus
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
The
major secretory products of the zona glomerulosa of the adrenal cortex
are
a. glucocorticoids
b.
mineralocorticoids
c. androgens.
d. catecholamines
e. cortisol and ADH
Recent Comments