Human Systems part 1 (extra credit)
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What are The 4 Functions of the Skeletal System?
- 1. Protects vital organs
- 2. Supports structures on the body
- 3. Allows movement
- 4. Manufactures blood cells
What is Cartilage?
A type of connective tissue found in the embryonic skeleton
What is ligaments?
tough fibrous tissue connecting bone to bone
What is bone marrow?
connective tissue found inside bones.
What does red marrow do?
Red Marrow manufactures blood cells
What are the 3 bones of the axial skeleton?
- 1. Skull
- 2. Vertebral Column
- 3. Ribcage
What are the three types of muscle tissue in the muscular system?
- 1. Smooth
- 2. Cardiac
- 3. Skeletal
What is the characteristics of Smooth muscle?
- Structure: Muscle Fiber, nucleus
- Location: Lungs, Stomach, large/small intestines
- Function: Peristalsis
What are the characteristics of cardiac muscle?
- Structure: Muscle Fiber, intercalated disc nuclei, striation
- Location: Heart
- Function: Pump blood to entire body
What are the characteristics of Skeletal muscle?
- Structure: Muscle Fiber nuclei, striation
What are the three major functions of the skeletal muscle??
- 1. General Body movement
- 2. Maintaining posture
- 3. Source of body heat
What are the 3 main parts of a Skeletal Muscle??
- 1. Origin
- 2. Insertion
- 3. Belly
What's an antagonist?
a muscle which performs an opposite movement
What is a flexor?
a muscle that bends to a body part
What is an extensor?
a muscle that straightens out a body part
What is a tendon?
the attachment between muscle and bone
What do the biceps do?
flexes the forearm
What do the triceps do?
Extends the forearm
What does the sternocleidomastoid do?
Turns the head
What does the pectoralis do??
Flexes and rotates the arm
What does the deltoid do?
raises the arm
What does the trapezius do?
raises and lowers shoulders
what do the latissimus dorsi do?
pulls the arm backward
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