Upload
kelley-crawford
View
91
Download
3
Tags:
Embed Size (px)
DESCRIPTION
Citation preview
4 Functions:
1. Produce skeletal movement2. Maintain posture and body
position3. Guard the entrances and
exits of the body4. Transport things through
the body – blood and lymph
MUSCLE TERMS
STRIATED – STRIPED IN APPEARANCE
NON-STRIATED – NOT STRIPED IN APPEARANCE
The Muscular System
Three basic muscle types are found in the body
1. Cardiac muscle only in heart Striated (striped) involuntary contracts over a long period
of time
2. Smooth muscle found in organs Non-striated involuntary slow, powerful contractions
3. Skeletal muscle striated voluntary multinucleated quick, powerful
contractions
Anatomy of a Skeletal muscle
•made of specialized cells called muscle fibers that contract quickly and powerfully.
Anatomy of a Skeletal muscle •made of specialized cells called muscle fibers that contract quickly and powerfully.
•Each muscle has thousands to millions of muscle fibers bundled together.
Anatomy of a Skeletal muscle •made of specialized cells called muscle fibers that contract quickly and powerfully.•Each muscle has thousands to millions of muscle fibers bundled together.
•Muscles are attached to bones by tendons (dense regular connective tissue).
•Muscle itself is called the belly.
tendon
belly
Muscles
of the
body
Frontals1
Sternocleidomastoid muscle4 & 13
Temporalis and Masseter 2 3
Trapezius14
Intercostal
Pectoralismajor
6
Deltoids 5
Latissimus dorsi
16
Biceps brachii
7
Triceps brachii15
Rectus abdominus External oblique
8
9
Erector spinae17
Gluteus maximus18
Adductor longus10
Quadriceps femoris12
Hamstrings19
Sartorius muscles11
gastrocnemius20