Muscles
The biceps brachii, triceps brachii, and quadriceps femoris are named for their number of _______.
What are origins?
Muscle group that flexes the knee and extends the hip
What are the hamstrings?
carries an electrical signal to a muscle to trigger relaxation or contraction
What is a motor neuron?
Name the 4 lobes of the brain
What are the frontal, parietal, temporal, and occipital lobes?
moves the eye medially
What is the medial rectus?
The smiling muscle
What is the zygomaticus?
Name the 4 rotator cuff muscles
What are the Supraspinatus, Infraspinatus, Teres Minor, Subscapularis?
impulse-generating and conducting region of the neuron
What is the axon?
divides the cerebral hemispheres into right and left
What is the longitudinal fissure?
transmits sound waves from the auricle to the tympanic membrane
What is the external acoustic meatus?
The 3 muscles that anchor and move the tongue are the genioglossus, hyoglossus, and ____________.
What is the styloglossus?
Prime mover of arm extension, also adducts and medially rotates the arm
What is the latissimus dorsi?
produce the myelin sheath that provides protection and increases conduction velocity
What are Schwann cells?
controls the muscles involved in speech production
What is Broca's area?
The semicircular canals and vestibule are essential for _______.
What is balance?
2 headed muscle that flexes the neck and rotates the head towards the shoulder on the opposite side
What is the sternocleidomastoid?
Prime mover of scapular protraction
What is the serratus anterior?
coarse connective tissue that binds groups of axons and forms bundles called fascicles
What is the perineurium?
3 connective tissue membranes covering the brain and spinal cord for protection
What are the meninges?
The 5 components of a reflex arc are the receptor, sensory neuron, ________ ______, motor neuron, and effector.
What is the integration center?
draws the ribs together to depress the rib cage and aid in forced expiration
What are the internal intercostals?
superficial and medial to palmaris longus, flexes and adducts the hand
What is the flexor carpi ulnaris?
these multipolar neurons are found in areas of the brain including the cerebral cortex, the hippocampus, and the amygdala
What are pyramidal cells/neurons?
Name and function of the 8th cranial nerve
What is the vestibulocochlear nerve, balance and hearing?
important for maintaining and adjusting muscle tone for posture, balance, and movement
What are stretch reflexes?