Internal and External Stimuli (2)

What two parts make up the CNS?

• Brain

• Spine

• Spinal Cord

• Cerebrum

What cells in our body detect change?

• Effectors

• Detectors

• Receptors

• Skin

Tags

NGSS.MS-LS1-8

What happens to the eye when a bright light is shone in it?

• Muscles in iris contract, causing pupil to dilate.

• Muscles in iris relax, causing pupil to contract.

Tags

NGSS.MS-LS1-8

Which of these are examples of effectors?

• Glands

• Skin

• Hair

• Muscles

Tags

NGSS.MS-LS1-8

What type of receptors do we have in our skin?

• Chemical

• Pain

• Light

• Temperature

Tags

NGSS.MS-LS1-8

What are the two types of cells found in the retina?

• Rona

• Rods

• Circles

• Cones

Tags

NGSS.MS-LS1-8

What is the name for the part of the eye that sends impulses from the eye to the CNS?

• Auditory Nerve

• Eye Nerve

• Optic Nerve

• Ear Nerve

Tags

NGSS.MS-LS1-8

What energy change takes place in the retina?

• Chemical -> Light

• Light -> Chemical

• Light -> Eletrical

• Light -> Heat

Tags

NGSS.MS-LS1-8

What do the semi-circular canals control?

• Balance

• Sending sound waves to the CNS

• Hearing

• Send vibrations through to cochlea

Tags

NGSS.MS-LS1-8

What is the function of the middle ear bones?

• Carries impulse to CNS

• Amplifies the incoming sound

• Detect sound energy

• Convert sound to electrical impulses