1. Specialized tissue that enable the body and its parts to move.
MUSCULAR SYSTEM
Specialized tissue that enable the body and its parts to move.
Muscular System BrainPop

4. How many muscles are there in the human body?
Answer: 640 Muscles
The muscles make up about 40 % of the body mass.
What is the longest muscle in the body?
Answer: The Sartorius
The Sartorius runs from the outside of the hip, down and across to the inside of the knee. It twists and pulls the thigh outwards.
What is the smallest muscle in the body?
Answer: The Stapedius
The Stapedius is located deep in the ear. It is only 5mm long and thinner than cotton thread. It is involved in hearing.
What is the biggest muscle in the body?
Answer: The Gluteus Maximus
The Gluteus Maximus is located in the buttock. It pulls the leg backwards powerfully for walking and running.

5. FUNCTIONS OF THE MUSCULAR SYSTEM
Movement (muscle move bones by pulling not pushing.)
Maintenance of posture and muscle tone. (We are able to maintain our body position because of tonic contractions in our skeletal muscles. These contractions don’t produce movement yet hold our muscles in position.)
3. Heat production (contraction of muscles produces most of the heat required to maintain body temperature.)
4. Protects the bones & internal organs

6. 2 TYPES OF MUSCLE VOLUNTARY MUSCLES –
- muscles that are under your conscious control
- smiling, turning a page in a book, getting out of your
seat
2. INVOLUNTARY MUSCLES –
- muscles that are not under your conscious control
- muscles responsible for breathing, digestion

8. The Skeletal & Muscular System Video Clip

9. 3 TYPES OF MUSCLE TISSUE 1. SKELETAL MUSCLE TISSUE –
- attached to the bones of your skeleton &
provides the force to move your bones.
- voluntary muscle (move when brain sends a message
to muscle to move)
- work in pairs (1 muscle contracts/1 muscle relaxes)

10. Bend arm
- biceps  contract
- triceps  extend
Straighten arm
- biceps  extend
- triceps  contract

11. Bend knee
- quadriceps  extend
- hamstrings  contract
Straighten knee
- quadriceps  contract
- hamstrings  extend

12. Crunches
- abdomen  contract
- back muscles  extend
Point toes
- calf muscle  contract
- shin muscle  extend

13. Naming Skeletal Muscles
Location of the muscle
Shape of the muscle
Relative Size of the muscle
Direction/Orientation of the muscle fibers/cells
Number of Origins
Location of the Attachments
Action of the muscle

14. Muscles Named by Location
Epicranius
(around cranium)
Tibialis anterior (front of tibia)

15. Naming Skeletal Muscles
Shape:
deltoid (triangle)
trapezius (trapezoid, 2 parallel sides)
serratus (saw-toothed)
rhomboideus (rhomboid, 4 parallel sides)
orbicularis and sphincters (circular)
Trapezius
Deltoid
Rhomboideus
major
Serratus anterior

16. Muscles Named by Size Psoas minor Psoas major maximus (largest)
minimis (smallest)
longus (longest)
brevis (short)
major (large)
minor (small)
Psoas major

17. Muscles Named for Number of Origins
Biceps (2)
Triceps (3)
Quadriceps (4)
Biceps brachii

18. Muscles Named for Action
Flexor carpi radialis (extensor carpi radialis)
– flexes wrist
Abductor pollicis brevis (adductor pollicis)
– flexes thumb
Abductor magnus
– abducts thigh
Extensor digitorum
– extends fingers
Adductor
magnus

19. - work automatically to control certain movements
3 TYPES OF MUSCLE TISSUE
2. SMOOTH MUSCLE TISSUE –
- work automatically to control certain movements
inside the body
- involuntary
- control breathing, heart rate, digestion

20. - found only in the heart - involuntary - never gets tired
3 TYPES OF MUSCLE TISSUE
3. CARDIAC MUSCLE TISSUE –
- found only in the heart
- involuntary
- never gets tired

21. MUSCULAR STRENGTH & FLEXIBILITY
Regular exercise makes individual muscle cells grow, and the whole muscle becomes thicker.
Atrophy/hypertrophy
muscles can become injured (strain, tear)

22. Human Body Pushing the Limits – Super Human Strength Video Clip