The musculocutaneous nerve is part of which spinal nerve plexus?
Muscle contraction without a change in muscle length is called an ______ contraction.
Define threshold as it pertains to muscle physiology.
Threshold is the minimum voltage necessary for contraction
During muscle twitch which phase lasts the shortest amount of time: the relaxation phase, latent phase, or the contraction phase?
In general, the strength of muscle contraction is changed by varying three factors. Name two of the ways in which tension generation is changed to maximize force generation for a particular load.
Length tension relationship
The instrument used in lab to determine force generated by the forearm muscles is called a:
When performing the experiment that tested the ability of your digital flexor muscles to generate tension at different resting muscle lengths, at which wrist position were the sacromeres of the digital flexor muscles excessively shortened?
Wrist flexed to 90 degrees
Name two factors that contribute to muscle fatigue.
K+ build up in the ECF
Latic acid build up
The site of muscle attachment to the more stationary bone is the:
What is the action of the buccinator?
Compress the cheek
Name two muscles of the suprahyoid group
What muscle is the prime mover of inspiration?
What muscle originates on the sternum and clavicle and inserts on the mastoid process of the temporal bone?
Name two muscles that flex the humerus:
Name the action of the fibularis longus (include all movements as part of the action)
Plantar flex the foot and evert the foot
What muscle flexes the digits in the hand?
Flexor digitorum superficialis
Name one muscle that is involved in radial flexion:
Extensor carpi radialis longus
What muscle originates on the coracoid process of the scapula and insert on the radial tuberosity?
Name the insertion of the vastus lateralis.
Name the origin of the gastrocnemius.
Name two muscles that flex the knee
Name the action of the gluteus Maximus (include all movements as part of the action).
ABD and extend the thigh
List the structures of the outer ear;
List the structures of the middle ear:
Auditory ( eustachian) tube
Tensor tympani muscles
List the structures of the inner ear:
Cochlear duct (scala media)
Spiral organ (organ of corti)
Name the insertion and action of the tensor tympani muscle
Action: pulls tympanic membrane inward to dampen it's motion
List the action and insertion of the stapesius muscle:
Action: reduces motions of stapes
the inner ear structures that are responsible for for static equilibrium, the preception of the orientation of the head when the body is stationary are the:
saccule and utricle
the inner ear structure that is responsible for horizontal linear acceleration/declereation is the:
the inner ear structure that is responsible for verticle linear acceleration/decleration is the:
the inner ear structures that are responsible for angular acceleration are the:
Which eye muscle is innervated by the abducens nerve? (0.25pts)
The afferent division of the nervous system carries: (0.25pts)
sensory information from the rest of the body to the CNS
sensory information from the CNS to the rest of the body
motor information from the CNS to the rest of the body
motor information from the rest of the body to the CNS
sersory information from the rest of the body to the CNS
Trace the flow of CSF through the brain by putting the following in the correct order
The thalamus, hypothalamus, and pineal gland are all part of the: (0.25pts)