Solved by a verified expert:1.
Blood cell formation is called ________.
a.
ossification
b.
hematopoiesis
c.
homeostasis
d.
metabolism
2.
What bones protect the spinal cord?
a.
ribs
b.
sternum
c.
vertebrae
d.
coxal bones
3.
Cube-shaped bones that contain mostly spongy bone are called ________ bones.
a.
flat
b.
long
c.
short
d.
irregular
4.
Small canals that connect osteocytes in their lacunae to the central canal are
known as
________.
a.
canaliculi
b.
perforating (Volkmann’s) canals
c.
central (Haversian) canals
d.
perforating (Sharpey’s) fibers
5.
The process of bone formation is known as ________.
a.
hematopoiesis
b.
hemostasis
c.
metabolism
d.
ossification
6.
Bone-destroying cells known as osteoclasts are activated by the hormone
________.
a.
calcitonin
b.
parathyroid hormone (PTH)
c.
insulin
d.
growth hormone
7.
Striated involuntary muscle tissue is classified as ________ muscle.
a.
skeletal
b.
cardiac
c.
smooth
d.
either smooth or skeletal
8.
The epimysium covering on the outside of the muscle can blend into cordlike
________ or
sheetlike
________.
a.
tendons; aponeuroses
b.
ligaments; tendons
c.
fascia; ligaments
d.
aponeuroses; ligaments
9.
The ________ is an organelle that wraps and surrounds the myofibril and stores
calcium.
a.
cross bridge
b.
sarcomere
c.
sarcolemma
d.
sarcoplasmic reticulum
10.
Muscle tissue has the ability to shorten when adequately stimulated, a
characteristic known as ________.
a.
elasticity
b.
irritability
c.
contractility
d.
extensibility
11.
One neuron and all the skeletal muscles it stimulates is known as a ________.
a.
sarcoplasmic reticulum
b.
motor unit
c.
synaptic cleft
d.
neuromuscular junction
12.
The heads of the myosin myofilaments are called ________ when they link the
thick and thin
filaments
together during skeletal muscle contraction.
a.
neuromuscular junctions
b.
synapses
c.
cross bridges
d.
motor units
13.
The gap between the motor neuron and the muscle fiber it supplies at the
neuromuscular junction is called the ________.
a.
synaptic cleft
b.
motor unit
c.
cross bridge
d.
H zone
14.
The nervous system is structurally subdivided into two systems: ________
nervous system and ________ nervous system.
a.
central; peripheral
b.
somatic; autonomic
c.
parasympathetic; sympathetic
d.
autonomic; sympathetic
15.
________ cells form the myelin sheaths around nerve fibers in the PNS.
a.
Satellite
b.
Ependymal
c.
Schwann
d.
Nerve
16.
Support cells in the central nervous system are collectively called ________.
a.
myelin sheaths
b. neuroglia
c.
oligodendrocytes
d.
microglia
17.
The part of the neuron that typically conducts nerve impulses away from the
cell body is the ________.
a.
dendrite
b.
cell body
c.
synaptic cleft
d.
axon
18.
The gaps between Schwann cells found at regular intervals in peripheral system
neurons are called ________.
a.
synaptic clefts
b.
axon terminals
c.
nodes of Ranvier
d.
myelin sheathsUnit 2 Examination 86 GED 102 The Human Body
19.
Sensory receptors located in muscles and tendons are termed ________.
a.
Meissner’s corpuscles
b.
proprioceptors
c.
lamellar corpuscles
d.
association neurons
20.
The membrane that covers the outer surface of the eye and lines the eyelids is
the ________.
a.
choroid
b.
sclera
c.
conjunctiva
d.
retina
21.
The ________ gland is located above the lateral end of each eye and releases
tears.
a.
tarsal
b.
ceruminous
c.
lacrimal
d.
ciliary
22.
The fibrous covering of the eye consists of the white outer layer, known as the
________, and a transparent portion known as the ________.
a. sclera;
cornea
b.
conjunctiva; sclera
c.
iris; pupil
d.
pupil; cornea
23.
The innermost sensory layer of the eye that contains bipolar cells and ganglion
cells is the ________.
a.
choroid
b.
retina
c.
sclera
d.
cornea
24.
The region of the optic nerve lacking photoreceptor cells is known as the
________.
a.
retina
b.
optic disc (blind spot)
c.
choroid
d.
iris
25.
The biconvex structure that focuses light on the retina is the ________.
a.
cornea
b.
pupil
c.
lens
d.
iris
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