MedTerm4 Muscular

• Actions help with movement of fluid through ducts and blood through the circulatory system.
• Generates heat up to 85%
• Hold body erect.
• Helps make movement possible.

• muscle fibers
• tendons
• fascia
• aponeurosis

• slender cells
• long fibers

• skeletal
• smooth
• cardiac

• L: walls of hollow organs, attach to bone.
• Fibers are striped and have many nuclei per fiber.

• Functions as autonomic system.
• L: walls of internal organs, digestive tract, blood vessels.
• *unstriated*

• L: found in muscular wall of the heart.
• Also known as myocardium or cardiac muscle.

• attaches muscle to bone
• Composed of CT

• fibrous CT
• F: covers and separates and supports muscle.

• F: attaches to bone or tissue.
• Hard CT
• Example pelvic girdle

• Antagonistic
• Contraction/Relaxation
• Muscle Innervation

stimulation of a muscle by an impulse transmitted by a motor nerve. When stimulation stops, the muscle relaxes.

working in opposition to each other.

tightening of muscle. It becomes shorter and thicker.

when a muscle returns to its original form. It becomes longer and thinner.

• Abduction
• Adduction
• Dorsiflexion
• Depression
• Circumduction
• Flexion
• Extention
• Elevation
• Supination
• Plantar Flexion
• Pronation

movement away from the midline of the body.

movement of limb toward the midline

decreasing the angle between two bones by bending a limb at the joint.

increasing the angle between two bones or the straightening out of a limb.

the act of raising or lifting a body part.

circular movement around an axis such as the shoulder joint.

circular movement at the far end of a limb.

palm or sole of foot is turned forward or upward.

movement that bends the foot upward.

movement that bends foot downward.

• Origin: where muscles begins
• Insertion: muscle ends by attaching to a bone or tendon.
• Action: named for their action.
• Location: named for their location of the organ they are near.
• Direction: named for the direction in which their fibers run.
• Number of Divisions
• Size/Shape

muscle

fascia

tendon, stretch out, extend, strain

hernia, tumor, swelling

abnormal condition, disease

fiber

movement

paralysis, stroke

coordination, order

tone

slow

lead

away from

toward

action

stretch out

wrist

head

destruction, breaking down

rupture

deficiency

coordination

movement

violent action

weakness or lack of strength

partial or incomplete paralysis

half

paralysis

bind or tie together