HBS 4.1

Depolarization occurs when the inside of a cell becomes _________________ due to _________ gates opening.

• positive - potassium

• negative - potassium

• positive - sodium

• positive - sodiium

The spaces between myelin on an axon are called

• axon gaps

• nodes of ranvier

• dendrite dents

Which of the following nervous system disorders occurs as a result of tangled plaques forming in brain tissue?

• Huntington's disease

• Alzheimer's disease

• Parkinson's disease

The diagram shows the mechanisms that control the concentration of glucose in the blood.
Which row identifies the glands and hormones labelled W, X, Y and Z?

• adrenal gland, adrenaline, adrenal gland, glucagon

• adrenal gland, adrenaline, pancreas, insulin

• pancreas, glucagon, adrenal gland, insulin

• pancreas, insulin, pancreas, glucagon

Tags

NGSS.HS-LS1-3

Which hormone is produced by the pancreas to promote the INCREASE of blood sugar by breaking down glycogen in the liver?

• glucose

• glucagon

• insulin

• glycogen

Tags

NGSS.HS-LS1-3

Which hormone is produced by the pancreas to promote the DECREASE of blood sugar by moving the glucose into cells

• glucose

• glucagon

• insulin

• glycogen

What is Homeostasis ?

• is the maintenance of a constant internal environment

• is the maintenance of a constant external environment

• is the maintenance of a constant living environment

Tags

NGSS.HS-LS1-3

What is the primary function of the human brain's frontal lobe?

• Motor control and decision making

• Visual processing

• Auditory processing

• Balance and coordination

Which part of the neuron is responsible for receiving signals from other neurons?

• Axon

• Dendrite

• Myelin sheath

• Soma

What is the role of neurotransmitters in the nervous system?

• Transmit electrical signals

• Transmit chemical signals

• Protect neurons

• Provide energy to neurons