Key RP 6 - Nervous System Intro Divisions and Tissue PDF

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Key – Nervous System

BRAIN

Spinal Cord

CENTRAL NERVOUS SYSTEM

THE NERVOUS SYSTEM

PERPHERAL NERVOUS SYSTEM

MOTOR SENSORY INFORMATION

INFORMATION

SOMATIC NERVOUS SYSTEM

AUTONOMIC NERVOUS SYSTEM

PARASYMPATHETIC

SYMPATHETIC

COMPONENTS OF A NEURON

1. AN ACTIOIN POTENTIAL IS AN ELICTRICAL SIGNAL? a. TRUE b. FALSE

2. A NEUROMUSCULAR SYNAPSE IS A SYNAPSE BETWEEN TWO NEURONS. a. TRUE b. FALSE *A NEUROMUSCULAR SYNAPSE IS BETWEEN A NEURON AND A MUSCLE FIBER*

LIST THE FIVE “HIGHER FUNCTIONS” THAT ARE PRESENTED IN THE CNS -CONSIOUSNESS -INTELLIGENCE -MEMORY -LEARNING -EMOTIONS

PARASYMPATHETIC VS. SYMPATHETIC PARASYMPATHETIC

SYMPATHETIC

- RELAXES THE BODY

- STIMULATES THE BODY

- REST AND DIGEST

- FIGHT OR FLIGHT

- HEART RATE DECREASES

- HEART RATE INCREASES

TWO BASIC CELL TYPES o NEURONS (NERVE CELLS) o NEUROGLIA CELLS

1.WHAT DO NEURONS DO? a SUPPORT AND PROTECT NEURONS b HELP WITH PROPER FUNCTIONING OF CELLS c SEND SIGNALS TO NEURONS OR MUSCLES IN BODY 2.WHAT DO NEUROGLIA CELLS DO? a SUPPORT AND PROTECT NEURONS b SEND SIGNALS TO NEURONS OR MUSCLES IN BODY c RECEIVE INCOMING SIGNALS FROM NEURONS

GLIAL CELLS

1.GLIAL CELLS ARE FOUND IN THE PNS AND THE CNS 2.SCHWANN CELLS ARE A TYPE OF GLIAL CELL FOUND IN THE PNS. 3.THE CNS HAS 3 DIFFERENT TYPES OF GLIAL CELLS; THEY ARE SATELLITE CELLS, MICROGLIA CELLS, AND OLIGODENDROGLIAL CELLS. 4.ONE SCHWANN CELL MYELINATES ONE SEGMENT OF ONE AXON IN THE PNS. 5.ONE OLIGODENDROGLIAL MYELINATES ONLY ONE AXON SEGMENT, BUT OF MANY AXONS. 6.GLIAL CELLS COMPROMISE 50% OF THE VOLUME OF THE NERVOUS SYSTEM.

• THE PNS SENDS SENSORY INFORMATION TO THE CNS. • THE CNS INTERPRETS THE SENSORY INFORMATION FROM THE PNS. • THEN THE CNS SENDS MOTOR RESPONSES TO THE PNS. • FINALLY, THE PNS DELIVERS MOTOR COMMANDS TO THE MUSCLES IN THE PERIPHERY

1 THE SOMATAMOTOR SYSTEM CONTROLS SKELETAL MUSCLE CONTRACTIONS. a TRUE b FALSE 2 WHICH NERVOUS SYSTEM IS NOT UNDER CONCIOUS CONTROL (INVOLUNTARY)? a SOMATIC NERVOUS SYSTEM b AUTONOMIC NERVOUS SYSTEM 3 THE AUTONOMIC NERVOUS SYSTEM IS ASSOCIATED WITH …. a VISCERAL ORGANS b SKELATAL MUSCLES c ORGANELLES d NEURONS 4 THE COMPONENTS OF A NEURON INCLUDE: CELL BODY, DENDRITE, AXON, AND NERVE TERMINAL. a TRUE b FALSE 5 WHAT DO SENSORY NEURONS DO? a PROCESS AND COORDINATE HIGHER FUNCTIONS b DELIVER MOTOR COMMANDS c DELIVER/INTERPRET SENSORY INFORMATION.

6 WHAT DO MOTOR NEURONS DO? a PROCESS AND COORDINATE HIGHER FUNCTIONS b DELIVER MOTOR COMMANDS c DELIVER/INTERPRET SENSORY INFORMATION. 7 WHAT DO INTERNEURONS DO? a PROCESS AND COORDINATE HIGHER FUNCTIONS b DELIVER MOTOR COMMANDS c DELIVER/INTERPRET SENSORY INFORMATION. 8 MOTOR RECEPTORS ARE NEURONS THAT DETECT AND RECEIVE SENSATIONS. a TRUE b FALSE *SENSORY RECEPTORS ARE NEURONS THAT DETECT AND RECEIVE SENSATIONS*...