NERVOUS SYSTEM NOTES:
1.) What is the Central Nervous System? (CNS) |
= Includes the brain & spinal cord. - Takes in & responds to information from the Peripheral Nervous System. |
2.) What is the Peripheral Nervous System? (PNS) |
= Includes the nerves, which connect all the body parts to the CNS, so information can be transmitted back & forth. |
| 3.)What are the main brain structures? | = Right & Left Cerebrums, Cerebellum & Medulla |
| 4.) What is the function of the Cerebellum? | = The Cerebellum receives & processes information from the skeletal joints in the body. The Cerebellum also keeps track of body position & helps you keep your balance. |
| 5.) What is the function of the Medulla? | = The Medulla is the smallest brain structure & connects to the Spinal Cord. The Medulla controls involuntary processes (Autonomic Nervous System), such as breathing & regulating heart rate. |
| 6.) What is the function of the Right & Left Cerebrums? | = The Cerebrum is the largest brain structure & is divided into 2 halves. Each 1/2 of the brain controls the opposite side of the body. The Cerebrum controls voluntary movements (Somatic Nervous System) & the senses of touch, light, sound, odors, taste, pain, heat & cold. |
| 7.) What is the Somatic Nervous System? | = The Somatic Nervous System is part of the PNS & is made up of motor neurons, tht you can control. These neurons are conneted to skeletal muscles. They control voluntary movements, such as walking, writing & talking. |
| 8.) What is the Autonomic Nervous System? | The Autonomic Nervous System controls body functions that you do not have to think about (like digestion, breathing & heart beating) & keeps all of the body's functions in balance. |
| 9.) What is Reaction Time? | Reaction time is the interval between when a person responds to stimulus that he/she has detected. |
| 10.) What is a Reflex? | A reflex is an involuntary reaction or response
that happens automatically. |