Nervous and Endocrine (Q3/1)

What do the motor neurons do?

• carry messages from the brain and spinal cord to muscles and glands

• carry impulses from skin and sends to organs the to spinal cord and brain

• carry impulses from sensory neurons to motor neurons

• store messages

What part of the brain is responsible for conscious thought, judgement, memory, reasoning and will power?

• Cerebellum

• Hypothalamus

• Cerebrum

• Thalamus

FIGHT OR FLIGHT:

• decreases heart rate

• increase heart rate

• reverses symptoms

• makes you fly

What does the brain stem do?

• provides the pathway for ascending and descending tracts

• pathway for only descending tracts

• provides structure

• pathway only for ascending tracts

The medulla oblongata controls

• vision and speech

• hearing

• heart rate and blood pressure

• respiration

part of a neuron that receives information from other neurons

• axon
• dendrites
• myelin sheath
• synapse

a signal molecule that transmits nerve impulses across synapses

• neuron
• neurotransmitter
• nerve
• action potential

An organ that produces secretions called hormones is known as a :

• chemical
• gland
• hormone
• duct

The process by which an organism’s internal environment is kept stable in spite of changes in the external environment.

• Positive Feedback

• Negative Feedback

• Homeostasis

• Targeted Cells

Negative Feedback Loops:

• amplify processes
• prevent small changes from getting larger
• are initiated during childbirth
• are found only in plants