Richland College
Biol. 2402
Marieb A&P Lab Manual - 11th Edition
ENDOCRINE SYSTEM
OBJECTIVES
1. To identify and name the major endocrine glands and tissues of the body when provided with
human models and dissected cats.
2. To list the hormones produced by each gland, giving a summary function of each as well as
target cells/organs for each hormone.
e.g.
TSH from ant. pituitary stimulates thyroid follicles to make T3/T4 hormones
glucocorticoid (cortisone) from adrenal cortex controls blood glucose levels
3. To describe the relationship between the hypothalamus and the pituitary.
4. To identify the histologic structure of the thyroid, pancreas, anterior and posterior pituitary,
adrenal cortex and medulla, testes, and ovaries, including specific hormone-secreting cells in
most of the organs (see below histology section).
Note figures in exercise, particularly microscopy (and corresponding histology atlas color plates
in lab book, as well as histology in the Histology Atlas at the Martini text website (click on STUDY
AREA in Mastering A&P)
ACTIVITY 1: IDENTIFICATION OF ENDOCRINE ORGANS
HUMAN:
All endocrine organs, including hypothalamus, on various human models
MINK: see cat dissection exercise at back of lab book
thymus
thyroid
adrenals
ovaries
testes
pancreas
ACTIVITY 2: MICROSCOPIC ANATOMY
HISTOLOGY (use 40X unless otherwise directed)
Identify these organs in microscope, the hormone-producing structures within, and hormones made.
anterior vs. posterior pituitary (overall view on 4X and 10X)
thyroid (follicles)
adrenals (medulla vs. cortex) 4X and 10X lens only for medulla/cortex comparison
testes (Cells of Leydig/interstitial cells)
ovaries (Graafian follicle)
pancreas (Islets of Langerhans)
NOTE: all available at Martini website. Open MAP, click on STUDY AREA, which takes you to the
Martini website.
 INTERACTIVE PHYSIOLOGY ENDOCRINE SYSTEM – Excellent review!
 Practice Anatomy Lab (histology, cat dissection, human cadaver, models)
 Histology Atlas