Free Printable Nervous and endocrine System

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Nervous and endocrine System

Total questions: 15

Worksheet time: 14mins

Name

Class

Date

Two parts of the system above are labeled with "A" and "B". Look closely at what these labels are pointing at. Which answer best describes both parts “A” and “B” in the diagram below?

central nervous system only

brain and motor nerves

peripheral nervous system only

central nervous system and peripheral nervous system

Which statement best describes the function of the nervous system in the body?

to protect other organs and tissues

send messages to body parts using only chemicals

to gather information through the senses (stimuli) and also control all other body systems

to transport oxygen and carbon dioxide

Which of the following is the nervous system’s main control center?

the brain

the peripheral nerve

the neuron

the spinal cord, which is made up of peripheral nerves

What is the main function of the endocrine system?

it creates chemicals that are sent around the body to maintain homeostasis

it creates electrical messages that are sent around the body to maintain homeostasis

it maintains the correct level of oxygen in the body to maintain homeostasis

it releases waste from the body to maintain homeostasis

Long nerve fibers that send electrical impulses away from the nerve cell body to other cells are

axons

dendrites

organelles

In a neuron, impulses move

from dendrite to axon

from cell body to dendrite

from axon to cell body

Glad that allows your body to respond to danger.

thymus

adrenal

thyroid

ovary

Gland that increases the rate at which you use energy

thymus

adrenal

thyroid

What is the point of a feedback loop?

To provide the body with more energy

To provide the body with more food

To make sure the conditions in the body are always changing

To make sure the conditions in the body remain stable

10.

In this body temperature feedback loop, predict what would happen if cooling mechanisms were NOT activated?

The body would not warm up.

The body would not cool down.

Your body would get colder and colder.

Your body would release lots of heat.

11.

The two types of feedback systems that help organisms maintain homeostasis are:

positive and negative

receptor and effector

static and dynamic

minor and major

12.

Maintaining body temperature is an example of a:

negative feedback loop

positive feedback loop

13.

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

Positive Feedback Response

Negative Feedback Loop

14.

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels.

Positive Feedback Response

Negative Feedback Loop

15.

Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.

Positive Feedback Response

Negative Feedback Loop

100 %

Nervous and endocrine System

Total questions: 15

Worksheet time: 14mins

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