BMD 251 Swiger exam 3
Sarcomere
According to the sliding filament model ,the _____Shorten(s) during muscle contraction.
ligand-gated cation channel
Acetylcholine receptors on the motor end plates of skeletal muscle also function as ________.
They change (increase or decrease) the angle between two bones.
Choose the statement which best describes angular movements?
rare because of the ligament reinforcement
Compared to the shoulder, displacements of the hip joints are ________.
motor unit
A group of muscle fibers innervated by a single neuron is called an___________.
eccentric
A muscle that is lengthening while it produces tension is preforming a(n)________ contraction.
calcium entry through voltage-gated channels
During excitation- contraction coupling, what triggers the release of acetylcholine from the somatic motor neuron?
relaxation
During the ____ phase of a muscle twitch, calcium is returned to the sarcoplasmic reticulum.
Skeletal muscle fibers
Endomysium in skeletal muscle tissue surrounds______.
thoracic
From Which region of the vertebral column is the above vertebrae?
hyperextension
Looking up at the ceiling would be an example of _________.
a state of sustained partial contraction.
Muscle tone is ________.
metacarpal
Name the bones of the palms of the hands.
hormone secretion
Normal functions of muscle tissue includes all but _____.
hormone secretion
Normal functions of the muscle tissue includes all but______.
hip bone
On which bone is the greater sciatic notch found?
ethmoid
On which bone is the superior nasal concha located?
cross bride forms> power stroke> Cross bridge detatches> Myosin head cocks
Order the steps in the cross bridge cycle:
spinous process
Recall the vertebral projection that occupies the midsagittal (median) plane.
are immovable joint
Synarthrotic joint__________.
is found in the very middle of the H zone.
The M line of a sarcomere__________.
atlas
The _____ articulates with the occipital condyles.
radius
The ______ articulates with the capitulum of the humerus.
Metatarsals
The ______ is/are distal to the tarsal bones.
tibia
The anterior border is the bony crest found on the ______.
biaxial
The condylar joints of the knuckles exhibit ____ movement.
mandibular
The condylar process of the mandible articulates with the ______ fossa of the temporal bone to allow for the movement of the jaw.
Ulna
The olecranon process is found on the ________.
lambdoid suture
The parietal bones articulates with the occipital bone at the ______.
Thumb
The pollen is more commonly called the ______.
Tropomyosin
The protein in thin filaments that covers binding sites and prevents cross bridging is called _____.
pivot
The proximal radioulnar joint is an example of a ______ joint.
lambdoid suture
The suture that connects the occipital bone with the parietal bones is the______.
articular capsule
The synovial membrane and the fibrous layer are components of the ______ of a synovial join.
talus and calcaneus
The weight of the body is transmitted from the leg to the ____ of the tarsals.
c-shaped pieces of fibrocartilage that helps absorb shock delivered to the knee
What are the menisci of the knee joint?
Adduction
What is moving a limb towards the midline of the body along the frontal plane called?
abduction
What is moving the limb away from the midline of the body along the frontal plane called?
recruitment
When the strength of stimulus intensity is increased, such as increasing voltage, then more motor units are activated. This mechanism is called ______.
interverbral discs
Which example below represents a symphysis?
temporomandibular joint (TMJ)
Which joint allows side to side movement called lateral excursion?
temporomandibular joint
Which joint allows the side to side movement called lateral excursion?
Shoulder
Which joint is an example of sacrificed stability for the sake of grater freedom of movement?
knee, hinge
Which joints are. correctly matched?
extension
Which movement increases the joint angled between articulating bones?
intervertebral disc
Which of the following choices represent a symphysis?
muscle tone
Which of the following has the greatest influence on the stability of the synovial joint?
the amount of synovial fluid in the joint cavity
Which of the following is NOT a factor that contributes to joint stability?
Synchrondrosis
Which of the following is NOT an example of a fibrous joint?
proximal radioulnar
Which of the following is a pivot joint?
coracohumeral ligament
Which of the following ligaments can be found in the shoulder joint?
anterior cruciate ligament
Which of the following ligaments prevents to tibia from sliding forward in the knee joint?
Calcium is released from the sarcoplasmic reticulum
Which of the following occurs during the latent period of muscle contraction?
lateral malleolus
Which portion of the fibula articulates with the talus?
are immovable joints
synarthrotic joints__________.
