Key terms

Question 1

Endocrine

Answer 1

Organ that secretes hormone into bloodstream. I.e. brain. cells secrete hormones that interact with hormone receptors. Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood. Hormones can travel far distance. I.e. hypothalamus releasing hormone directly into bloodstream

Question 2

EXOCRINE:

Answer 2

cells secrete hormones via a duct or tube into the internal
or external environment (extracellular space). I.e. pancreas, which is BOTH Endocrine and Exocrine. Can release insulin and glucagon into the bloodstream and also can release digestive enzymes into gastrointestinal tract.

Question 3

lumen

Answer 3

inside of small intestine

Question 4

Main Diff b/w Exocrine and Endocrine:

Answer 4

Endocrine releases hormones into circulatory system [ can travel throughout the whole circulatory system so tends to travel a lil farther.] Exocrine releases hormones into lumen. physical location.

Question 5

ECTOCRINE:

Answer 5

substances released outside the individual and affect
another animal. For example pheromones and chemosignals. [pheromones but for humans. Like sweat]

Question 6

PARACRINE:

Answer 6

cells secrete products that affect other cells

Question 7

INTRACRINE:

Answer 7

chemical mediation of intracellular events

Question 8

Chemical messenger:

Answer 8

any substance that is produced by a cell that affects the function of another cell

Question 9

Cytokine:

Answer 9

a chemical messenger that evokes proliferation of other cells, especially in the immune system

Question 10

Hormone:

Answer 10

chemical messenger that is released into the bloodstream or tissue fluid system that affects the function of target cells some distance from the source

Question 11

Neurohormone:

Answer 11

hormone produced by neuron=produced in brain. Hypothalamus, pituitary gland and pineal gland examples of where youll find neurohormones

Question 12

Neuromodulator:

Answer 12

a hormone that changes/modulates the response of a neuron to some other factors

Question 13

Neuropeptide:

Answer 13

peptide hormone produced by a neuron

Question 14

Neurosteroid:

Answer 14

steroid hormone produced by a neuron

Question 15

Neurotransmitter:

Answer 15

chemical messenger that acts across the neural synapse i.e. dopamine, acetylcoline not always considered hormones, controversial