A fibrous joint that is a peg-in-socket is called a _______ joint.
Answer Choices:
gomphosissynchondrosissyndesmosissuture
Answer: gomphosis
Connective tissue sacs lined with synovial membranes that act as cushions in places where friction develops are called _______.
Answer Choices:
bursaemeniscitendonsligaments
Answer: bursae
Bending your head back until it hurts is an example of _______.
Answer Choices:
hyperextensionflexioncircumductionextension
Answer: hyperextension
What is moving a limb away from the median plane of the body along the frontal plane called?
Answer Choices:
dorsiflexionadductionabductioninversion
Answer: abduction
Pointing the toes is an example of _______.
Answer Choices:
pronationcircumductionplantar flexionprotraction
Answer: plantar flexion
What structure in skeletal muscle cells functions in calcium storage?
Answer Choices:
sarcoplasmic reticulummitochondriamyofibrillar networkintermediate filament network
Answer: sarcoplasmic reticulum
Which of the following surrounds the individual muscle cell?
Answer Choices:
perimysiumfascicleendomysiumepimysium
Answer: endomysium
What is the functional unit of a skeletal muscle called?
Answer Choices:
sarcomeremyofibrilmyofilamentthe sarcoplasmic reticulum
Answer: sarcomere
Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?
Answer Choices:
a) cholinesteraseb) norepinephrinec) gamma-aminobutyric acidd) acetylcholine
Answer: d) acetylcholine
The part of a neuron that conducts impulses away from its cell body is called a(n) _______.
Answer Choices:
a) Schwann cellb) axonc) dendrited) neurilemma
Answer: b) axon
An impulse from one nerve cell is communicated to another nerve cell via the _______.
Answer Choices:
a) receptorb) effectorc) cell bodyd) synapse
Answer: d) synapse
The term central nervous system refers to the _______.
Answer Choices:
a) spinal cord and spinal nervesb) peripheral and spinal nervesc) brain, spinal cord, and peripheral nervesd) brain and spinal cord
Answer: d) brain and spinal cord
What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called?
Answer Choices:
a) ependymal cellsb) astrocytesc) Schwann cellsd) oligodendrocytes
Answer: a) ependymal cells
A shallow groove on the surface of the cortex is called a _______.
Answer Choices:
a) furrowb) fissurec) sulcusd) gyrus
Answer: c) sulcus
Ridges of tissue on the surface of the cerebral hemispheres are called _______.
Answer Choices:
a) gangliab) sulcic) gyrid) fissures
Answer: c) gyri
Starting at the spinal cord, the subdivisions of the brachial plexus are (in order):
Answer Choices:
a) divisions, roots, trunks, and cordsb) roots, divisions, cords, and trunksc) trunks, divisions, cords, and roots
Answer: b) roots, trunks, divisions, and cords (User’s incorrect answer: c) trunks, divisions, cords, and roots)
Pressure, pain, and temperature receptors in the skin are _______.
Answer Choices:
a) proprioceptorsb) exteroceptorsc) mechanoreceptorsd) interoceptors
Answer: b) exteroceptors
Nerves that carry impulses toward the CNS only are _______.
Answer Choices:
a) afferent nervesb) motor nervesc) efferent nervesd) mixed nerves
Answer: a) afferent nerves