How many pairs of cranial nerves are present in mammals?

• A) 12
• B) 10
• C) 20
• D) 14

Some ancient protein ...................are in species ranging from bacteria to human

• A) Carbohydrate
• B) Hormones
• C) Wax
• D) Metal

Histamine, a type of connective tissue that is released by

• A) Interferon
• B) Mast cell
• C) Macrophages
• D) Cytokines

Most of the hormones are

• A) Carbohydrate in nature
• B) Basic in nature
• C) Lipids in nature
• D) Protein in nature

Steroid hormones are made from __________.

• A) Phospholipids
• B) Cholesterol
• C) Carbohydrates
• D) Amino acids

Most invertebrate neurosecretory cells produce polypeptides are konown as______

• A) Neuropeptides
• B) Electropeptides
• C) Electron
• D) Protein

Chemical messengers and their associated secretory structures became even more complex with the appearance of vertebrates.

• A) False
• B) True
• C)
• D)

What does the tapetum lucidum do?

• A) Gives animals night vision
• B) It is the area where the optic never attaches
• C) It is the colored part of the eye
• D) Transparent jelly-like fluid

Hormones are secreted by __________.

• A) Specialized cells
• B) Neurons
• C) Nerves
• D) Lobes

Running depends on continued cell proliferation, differentiation and growth.

• A) False
• B) True
• C)
• D)

A chemical substance is synthesized in the body that controls and regulates the activity of certain cells is called

• A) Glands
• B) Transmission
• C) Nerves
• D) Hormones

Gonads and adrenal gland, secreting the hormones known as

• A) Lipids
• B) Steroids
• C) Amines
• D) Proteins

The delta cells secrete -------------------.

• A) Thyroxine
• B) Oxytocin
• C) ADH
• D) Somatostatin

Hyperthyroidism (overactive thyroid) occurs when thyroid gland produces too much of the hormone --------------.

• A) Thyroxine
• B) Oxytocin
• C) Prolactin
• D) Insulin

-------------- cells produce insulin.

• A) Gamma
• B) Alpha
• C) Beta
• D) Delta

The -------------------- cells produce the hormone glucagon.

• A) Alpha
• B) Gamma
• C) Beta
• D) Delta

The endocrine portion of the pancreas makes up only about ------------------- of the gland.

• A) 75%
• B) 80%
• C) 1%
• D) 99%

--------------------inhibits glucagon and insulin secretion.

• A) Thyroxine
• B) Oxytocin
• C) Somatostatin
• D) ADH

Each islet of Langerhans contains ------------------ special groups of cells

• A) 4
• B) 2
• C) 5
• D) 3

The ---------------- is an elongated, fleshy organ posterior to the stomach

• A) Pancreas
• B) Thyroid
• C) Liver
• D) Gall Bladder