Show:
Nervous System
The Brain
Nerve Cells
Endocrine System
Trivia
100

What are the two main parts of the nervous system?

Central Nervous System (CNS) and Peripheral Nervous System (PNS)

100

Which part of the cerebrum (in the brain) controls voluntary movements of the right side of the body?

The left cerebral hemisphere (left side)

100

What are nerve cells called?

Neurons

100
What does the endocrine system involve?

Hormones

100

Who was the first woman to win the Nobel Prize in 1903?

Marie Curie!

200

What do receptors called 'thermoreceptors' detect?

Changes in temperature or heat

200

What is an imaging technique that we can use to look at the function of the brain?

MRI

200

What is the function of neurons? (What do they do, generally?)

To transmit messages and information around the body

200

Where are hormones released from?

Glands

200

In which year did World War I begin?

1914

300

You accidentally touch the metal part of a seatbelt on a 40 degree day. As a reflex, you pull your hand away. What is the stimulus?

The heat from the metal part of the seatbelt

300

Which side of the brain has more control over language and logical thinking?

The left cerebral hemisphere

300

What does a sensory neuron do?

Transmits impulses from receptors in sense organs (sight, smell, touch, taste, sound) to the CNS

300
How does the body make sure the right hormone binds the right receptor? (e.g. hormone binding heart muscle cells)

Complementary shapes (like a jigsaw puzzle) between hormones and receptor

300

What is the chemical symbol for gold?

Au

400

You accidentally touch the metal part of a seatbelt on a 40 degree day. As a reflex, you pull your hand away. What is the response?

Pulling your hand away from the source of heat

400

What are the two main divisions of the peripheral nervous system?

Somatic NS (voluntary control) and autonomic (involuntary control)

400

What does a motor neuron do?

Transmits impulses from the CNS to muscles or glands (effectors) to cause them to respond

400

What is homeostasis?

The process of maintaining a constant internal environment in the body to keep everything at a healthy level

400

What is the only continent where coffee grows naturally?

Africa

500

You accidentally touch the metal part of a seatbelt on a 40 degree day. As a reflex, you pull your hand away. What is the receptor? And What is the effector?

Receptor = thermoreceptors in hand or fingertips that detect heat

Effector = muscles in hand and arm that pull the hand away

500

Which division of the autonomic (involuntary) nervous system is activated in situations of fear or stress? (200 points) And which division opposes this and calms the body back down?

Sympathetic nervous system (fight or flight) and parasympathetic nervous system (rest and digest)

500

Describe what happens in a knee-jerk reflex (hammer tap on the knee, and the leg swings forward)

Include: stimulus, receptor, sensory neuron, motor neuron, effectors, response

Stimulus: hammer tap

Receptor: receptor in knee detects hammer tap

Sensory neuron: sends impulse to brain and spinal cord

Motor neuron: transmits impulse from brain to muscles

Effectors: muscles contract and move leg

Response: lower leg swings forward

500

Use the idea of a negative feedback loop to explain what happens when either temperature, water levels, or blood glucose becomes too high.

Temperature = sweat glands release sweat to cool body down


Water levels = decreased ADH released to decrease water level in blood


Blood glucose = pancreas increases the release of insulin to decrease blood glucose
500

What is the largest desert in the world?

The Antarctic Desert