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8 Cards in this Set

  • Front
  • Back
Skeletal Muscle
A. action
B. appearance
C. type of movement
(a) move bones
(b) striated, alternating light and dark bands
(c) Voluntary movement, but most are also controlled subconsciously to some extent
Cardiac Muscle
A. location
B. type of movement
C. cause of contraction
a) heart
b) Straited
c)Involuntary movement
d) Heart beats because of a pacemaker that initiates each contraction. called autorythmicity
Smooth Muscle
A. location
B. Appearance
C. type of movement
a)in walls of hollow internal structures, such as blood vessels, airways, and most organs in the abdominopelvic cavity, skin, and attached to hair follicles
(b)No striations
(c)Involuntary movement
Four functions of muscles
-Producing body movement
-Stabilizing body positions
-Storing and moving substances in body
-Generating heat
Four properties of muscular tissue
-Electrical Excitability
-Contractility
-Extensibility
-Elasticity
Electrical Excitability
A. definition
B. two types of stimuli
a. Ability to respond to certain stimuli by producing electrical signals called action potentials
b. -Autorythmic electrical signals, such as the heart’s pacemaker
-Chemical stimuli such as neurotransmitters
Fascia
a sheet of fibrous connective tissue that supports and surrounds muscles
Superficial fascia
a. location
b. function
c. composed of
a. subcutaneous layer or hypodermis
b. separates muscle from skin
c. composed of areolar connective tissue and adipose tissue