HBS 2.2.1

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

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

• glucose

• glucagon

• insulin

• glycogen

Tags

NGSS.HS-LS1-3

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

Hormones are capable of creating very specific responses in the body even though they will travel throughout the bloodstream and contact millions of cells without triggering any response. Which of the following explains how this is possible?

• a response is generated only during growth spurts

• hormones will only be able to create a response with cells that have a specific receptor

• a response is created through the body but is only noticeable under certain conditions

• all are correct

What is Homeostasis ?

• s the maintenance of a constant internal environment

• s the maintenance of a constant external environment

• s the maintenance of a constant living environment

Tags

NGSS.HS-LS1-3

Which one here is a hormone?

• Glycogen

• Glycerol

• Glucagon

• Glucose

What is the primary function of the myelin sheath in the nervous system?

• To transmit electrical signals

• To insulate nerve fibers and increase signal speed

• To connect neurons to blood vessels

• To produce neurotransmitters

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

• Axon

• Dendrite

• Myelin sheath

• Node of Ranvier