Musculoskeletal System review quiz
The number of thoracic vertebrae is:
12
What is the action of the Palmar Interossei?
ADDuction of 2nd, 4th, & 5th digits
The ion necessary for cross-bridging is:
Calcium
Which of the following is true regarding a concentric muscle contraction?
It occurs when a muscle exerts a force & shortens
When a muscle cannot be further excited it is said to be in the____
absolute refractory period
Which of the following are responsible for external rotation of the upper arm?
both infraspinatus & teres minor
Which two nerves are terminal branches of the sciatic nerve?
common fibular & tibial
ridge of bone
crest
The osteon, or haversian, system
delivers nutrients to and removes waste products from bone cells
Which part of a long bone ossifies from the primary ossification center?
diaphysis
The trochlea and capitulum can be described as:
distal portions of the humerus
Which action is the Masseter responsible for?
elevating mandible
eminence superior or adjacent to a condyle
epicondyle
The longest and heaviest bone in the body is the:
femur
The action of the brachialis muscle is to _______ the forearm.
flex
passage through a bone
foramen
elongated depression of furrow
groove
large, round articular end
head
The ______ is the only bone in the body that articulates with no other bones.
hyoid
Which nerve innervates the Gluteus Maximus?
inferior gluteal nerve
cardiac muscle
involuntary straited
smooth muscle
involuntary unstraited
Which of the following is TRUE regarding cardiac muscle?
it contains intercalated discs
Which muscle assists in the grinding of food?
medial pterygoid
Which nerve passes between the heads of the Pronator Teres?
median
Which nerve passes through the carpal tunnel?
median
Another name for a skeletal muscle cell is a(n):
muscle fiber
Which nerve innervates the Piriformis?
nerve to piriformis
Which muscle elevates the eyebrows and indicates a look of surprise?
occipitofrontalis
Which muscle closes the eye?
orbicularis oculi
In bone formation, the cells that produce the organic matrix are the:
osteoblasts
Which of the following is not a type of cell found in bones?
osteology
Which of the following is an example of a sesamoid bone?
patella
Which muscle is responsible for unlocking the knee?
popliteus
When an athlete injures a muscle of the hamstring group, the injury is on the:
posterior thigh
Which bone marrow produces red blood cells?
red bone marrow
The contractile unit of a muscle that spans between two Z discs is a:
sacromere
The plasma membrane of a muscle fiber is called the
sarcolemma
thorn-like process
spine
Which of the following is not a muscle of the rotator cuff?
teres major
All of the following are characteristics of smooth muscle except:
thin and thick filaments are aligned in sarcomeres like skeletal muscles
Which muscle is innervated by the Spinal Accessory Nerve?
trapezius
skeletal muscle
voluntary straited
