Anatomy quiz 1 questions
the spinal cord has
a core of gray matter surrounded by white matter
the intermediate radioulnar joint exists between the radius and the ulna. the two bones are joined together by a high collagen sheet of dense connective tissue. This joint that allows slight movement and flexibility between the two bones. what specific type of joint is this?
a fibrous syndesmotic joint
which of the following is found in the posterior group of forearm muscles
abductor pollicis longus
the muscle that opposes a particular action is called the
antagonist
when someone taps you on the shoulder, they stimulate the ___ nerve
axillary
as a person is vigorously rowing a boat, they suddenly experience extreme pain in their upper arm and no longer can extend at the elbow joint. which of the following is probably the injured muscle
triceps brachii
when a person hits their funny bone, they cause temporary damage to the ___ nerve
ulnar
dendrites on unipolar neurons are parts of
sensory neurons
of the following muscles of the forearm, which one rotates the forearm to turn the palm upwards?
supinator
a muscle that assists the agonist is a
synergist
a muscle that extends both the wrist and the index finger is the
extensor indices
organize the following parts of a muscle from smallest to largest
filament, myofibril, muscle fiber (myofiber), fascicle, muscle
teres major and teres minor are NOT involved in
flexion and abduction of the arm
movements permitted by the elbow joint between the humerus and ulna are
flexion and extension
the rotator cuff muscles
hold the head of the humerus in the glenoid fossa of the scapula
the somatic nervous system consists of nerve fibers that connect the CNS to the ____, whereas the autonomic nervous system consists of fibers that connect the ____
Skin and skeletal muscles; CNS to the visceral organs
which vessel is often used to draw blood from
cephalic
the superficial vessels typically seen in the hand and forearm are tributaries of the __and __ veins
cephalic and basilic
the nervous system
controls the movement of muscles
the branch of a spinal nerve that innervates deep muscles on the dorsal thorax is the
dorsal ramus
the thickest of the meninges is the
dura mater
the anconeus works with the triceps brachii to
extend the forearm
which of the following muscles is part of the rotator cuff?
infraspinatus
three general functions of the nervous system are
integrate, moror, sensory
which of the following veins is NOT involved in draining blood from the brachium
median cubital vein
an injury to the wrist that results in edema in the carpal tunnel would compress the
median nerve
the brachial plexus supplies nerves that function to contract which of the following
muscles of the arm and forearm
a muscle that is attached to a less moveable or relatively fixed part is called the
origin
the central nervous system consists of
the brain and spinal cord
what is found in the dorsal root ganglion
the cell bodies of pseudo-unipolar sensory neurons
