1. Chapter 2: Basic Exercise Science

2. Human Movement Systems:
Nervous system: communication network of billions of cells
Skeletal system: framework composed of bones and joints
Muscular system: series of interconnected muscles attached to bones via tendons and ligaments.
Endocrine system: hormone secretion operating mainframe.

3. Nervous System: Functions
Three (3) primary functions:
Sensory function: ability of the nervous system (NS)to sense changes in the internal and external environment.
Internal: stretch placed on a specific muscle
External: the change form walking on the sidewalk to walking on sand
Integrative function:
Ability to analyze and interpret information to allow for proper decision making to produce the appropriate response.
Motor function:
Neuromuscular response to the sensory information

4. Nervous System: Two (2) main parts
Peripheral Nervous System:
Cranial and spinal nerves that spread throughout the body
Sensory neurons:
Transmits impulse FROM muscles and organs
Motor neurons:
Transmits impulse TO muscles and organs

5. Nervous System: Movement Receptors
Muscle spindles:
Receptors sensitive to change in the length of the muscle and the rate of that change
Golgi tendon organs:
Receptors sensitive to change in the tension of the muscle and the rate of that change
Joint receptors:
Receptors surrounding a joint that respond to pressure, acceleration, and deceleration of the joint.

6. Skeletal System: Bones: Joints:
Provides a resting ground for muscles and protects vital organs
Joints:
Junctions of bones, muscles, and connective tissue at which movement occurs.

7. Types of Joints: Nonsynovial: sutures of the skull Synovial: knee
Gliding: carpals of hand
Condyloid: knee
Hinge: elbow
Saddle: carpo-metacarpal
Pivot: radioulnar
Ball-and-socket: shoulder

8. Joint Connective Tissue:
Ligament:
Primary connective tissue that connect bones together and provides stability, input to the nervous system, guidance, and the limitation of improper joint movement.

9. Joint Connective Tissue:
Ligament:
Primary connective tissue that connect bones together and provides stability, input to the nervous system, guidance, and the limitation of improper joint movement.

10. Skeletal System: