Chapter 8/10
What is the distal attachment of all three heads of the triceps brachii?
Olecranon
Which of the following is the most lateral bone in the forearm?
Radius
Muscles that dorsiflex the foot are found in which compartment of the leg?
Anterior
What is the action of the orbicularis oris?
Closes and protrudes lips as in kissing
Contraction of the left sternocleidomastoid causes the head to turn toward the right. What type of movement is this?
Contralateral
What is the primary action of the masseter?
Elevation of the mandible
Which term refers to a muscle that prevents a bone from moving during an action?
Fixator
The auditory ossicles include which of the following? Check all that apply.
Hyoid Mastoid
Choose the incorrect statement regarding the development of the skull from infancy through childhood
INCORRECT: The skull reaches about three-quarters its adult size by age 1
Choose the incorrect statement regarding the general features of the vertebral column.
INCORRECT: The vertebral column consists of a chain of 30 vertebrae with intervertebral discs of fibrocartilage between most of them. Why? Because there are 34
Which part of the ischium supports the body when sitting?
Ischial tuberosity
What are the proximal attachments of the soleus? Check all that apply.
Medial and lateral condyles of femur Ischial tuberosity
Which bone is the weight-bearing bone of the lower leg (crural region)?
Tibia
The action for the vastus lateralis muscle is to __________ the knee.
extend
The skeletal muscles are innervated by __________.
spinal nerves and cranial nerves
The concave surface of the ulna that wraps around the trochlea of the humerus is the __________ ___________.
trochlear notch