KINE 374 : Practice EXAM 1

Concentric contraction of the brachialis muscle causes elbow flexion. Therefore, it is an ______ of elbow extension.

Agonist

The wrist (radiocarpal) joint is a __________ synovial joint.

condyloid joint

The femur is part of the axial skeleton

false

The distal tibiofibular syndesmosis is an example of a:

fibrous joint

cervical facet joints are_________ type synovial joints

glide

All of the following muscles create Contralateral rotation with unilateral contraction, except:

levator scapula

Shoulder flexion and extension occur about a ____________ axis.

medial to lateral

According to the length-tension relationship, muscles generate the most force:

optimal length

Which of these actions occurs in the transverse plane?

Right trunk rotation

Which of the following is a synovial joint that allows movement in more than one cardinal plane?

saddle joint

Which type of bone is imbedded in a tendon?

Sesamoid bone

A/n ______________ contraction is where the muscle lengthens as it contracts

Eccentric

What is the appropriate name for a long muscle that causes the toes to extend?

Extensor digitorum longus

Summation involves activating additional motor units to help produce a large amount of force.

False

Identify the action of a muscle with a line of pull that crosses posterior to the medial-to-lateral axis of rotation of the hip joint.

Hip extension

According to the force-velocity relationship:

Muscle produces the greatest force at low velocities.

The bone movement observed around any given joint is a result of the balance of _________ acting around the joint.

Torques

A motor unit is a single motor neuron and the individual muscle fibers controlled by it.

True

Within a parallel (fusiform) muscle, the orientation of the muscle fibers and the line of pull of the muscle are arranged in the same direction.

True

Hip abduction and adduction occur around a ___________________ axis of rotation.

anterior to posterior

The pubic symphysis is an example of a

cartilaginous joint

The sternocleidomastoid has inferior attachments at:

the manubrium of the sternum and the medial third of the clavicle

Which is not a function of bones

thermogenesis