Muscles functions are ?

types of muscle

voluntary muscle is

produce movement and maintain postoure

smooth muscle has greater degree of stretchiness as compared with skeleta muscle

allows the walls of organs such as the uterus, urinary bladder, and stomach to expand

found only in the heart, where its function is to pump blood through the body

layer of though connective tissue

muscle fiber is surrounded by a muscle membrane

the storage site of calcium

Each myofibril is made up of a series of contractile units called

The perimysium bundle groups of muscle fiber the bundles are called

in what structure are the cross-bridges forming contractile protein located?

occurs when the cross-bridges are broken and the thin and thick filaments return to their original position

calcium and adenosine triphosphate play and important role in the contraction and relaxation

when calcium are pumped back to the sr

the neuro transmitter at the NMJ is

single______motor neuron and the muscle fibers that are supplied by the____

Disease that affect the NMJ

secretes a neurotoxin that causes the excessive firing of the motor nerves

appears when food has been improperly processed

sustained muscle contraction is called

additional motor units increases the contractile force of a muscle

refers to a normal continuous state of partial muscle contraction

chief muscle

overuse muscle increase in size

lack of exercise causes the muscles of the leg to atrophy

nerve to the muscles are severed

is part of the normal aging process

muscle that oppose the action of another muscle

flat muscle that covers the frontal of bone

sphincter muscle that that encircles the eye

skin of the upper eyelid/elevates the eyelid

sphincter muscles that encircles the mouth

used in actions requiring compression of the cheek, as in sucking, whistling and playing the trumpet

smiling muscle , it extends from the corners of the mouth to the cheekbone

closes jaw and retracts jaw

contraction of both muscles flexes the head at the neck. contraction of one rotates the head toward opposite sides

open you mouth wide muscle

hyperextends head so as to look at sky lateral flexion of head

a thick muscle that covers shoulder joint

"scare crown"

major muscle on anterior surface of arm

adduct and rotates arm medially behind the back

swimmer muscle

cause shrugging and medial rotation of shoulders

pronates forearm so that palms face downward or backwards

plantar flexion of foot

muscle is surrounded by layers of though connective tissue

The epimysium, perimysium, and endomysium extend toward and attach to the bone as a tendon, a long cordlike structure.

f a muscle is immobilized for a prolonged period, it may develop a

The muscles of the chest include the

consists of four muscles in an arrangement that provides considerable strength.

The four abdominal muscles include the following

extends from the sternum to the pubic bone.

It extends the arm at the shoulder joint and assists with the medial rotation and adduction of the arm at the shoulder joint.

The irritated nerve causes tingling, weakness, and pain in the hand and arm.

The gluteus maximus is the

Both the gluteus maximus and gluteus medius are commonly used sites for

Muscles that move the legs include the