Gross Anatomy Exam 1 (1/10)

Study day 1 of 10 for Gross Anatomy Exam 1

21 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
What is CONTRACTILITY?
The property of skeletal muscle that allows us to produce movement
What are muscles role in MOVEMENT?
Mobility, respiration, and digestion
What are muscles role in STABILITY?
Maintain posture, and hold bones in place
What are the muscles role in COMMUNICATION?
Speech, facial expressions, writing
What are muscles role in CONTROL OF BODY OPENINGS AND PASSAGES?
Sphincter muscles around eyelids, pupils, and mouth control admission of light, food, and drink
What are the muscles role in HEAT PRODUCTION?
Produce 85% of our bodies heat
What are muscle fibers?
The basic structural unit of a muscle, amount determines size of muscle.
What are Fasciculi?
Bundles of muscle fibers
What do groups of fasciculi form?
The muscle
What holds the muscle fibers and fasciculi together?
Connective Tissue
What is the functions of connective tissue in muscles?
Connect muscles to other structures, Provide route for nerves and blood vessels to reach muscle fibers, provide framework for contraction to be transfered to bone.
What is the endomysium?
Thin sheath INSIDE MUSCLE surround each muscle fiber and binds to adjacent fibers.
What is the Perimysium?
A dense layer AROUND each fasciculi that divides muscle into compartments.
What is the Epimysium?
Dense irregular connective tissue ON THE MUSCLE that separates from surrounding tissues and will continue as the tendon.
What is the anatomy of a muscle fiber?
Extremely long and multinucleated, contains several myofibrils, each fiber contains specialized membrane called a sarcolemma.