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ANAT 261 Lecture Notes - Hepatocyte

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15 Mar 2012

School

McGill University

Department

Anatomy & Cell Biology

Course

Professor

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Document Summary

Fate of secretion: endocrine no duct; secretion into surrounding tissue or blood system (ex. Delivered through duct to lumen/surface (ex. sweat glands: paracrine acts on neighbouring cell. Structure of secretory portion: tubular tube-shaped (ex. sweat gland, acinar round clusters (ex. salivary gland) Structure of excretory portion or duct: simple one glandular unit per duct, compound several glandular units per duct. Manner of secretion: holocrine cells die; everything secreted (ex. sebaceous glands, merocrine cells unaffected; only secretory products released (ex. sweat glands, apocrine some cell mass loss (ex. mammary glands) Flat and basally located filled with zymogen granules eosinophilic/acidophilic filled with mucinogen droplets - (don"t stain well) *serous demi-lunes = portions of serous cells in a seromucous gland. Large, round & fill most of the cell. Lab 10 salivary glands, pancreas and liver. Three types: submandibular: both serous and mucous acini (90% serous, sublingual: only mucous acini (some with serous demilunes, parotid: only serous acini.

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Related Questions

Fill in the blanks

1) The ducts of merocrine (eccrine) sweat glands open to the(a)blank .Merocrine (eccrine) sweat glands aredistributed in the (b)blank layer.

2) Lamellated (pacinian) corpuscles function in the sensation of(a) blank.

3) Tactile (meissner) corpuscles function in the sensation of(a) blank.

4) Merocrine (eccrine) sweat glands produce sweat that is(a)blank . The function of this sweat gland is to(b)blank .

5) Sebacious glands are located (a) blank. Theyproduce a product called (b)blank . The functionof this product is to (c) blank.

6) The ducts of apocrine sweat glands open to (a)Blank. Apocrine sweat glands are distributed inthe (b) blank regions of the body.

greenkangaroo778

paracrines

a. are long range chemical mediators that are specically secreted into the blood by endocrine glands and are carried to distant target organs

b. are hormones released into the blood specifically by neurosecretory neurons

c. are hormones released specifically from the parathyroid glands

d. are local chemical mediators whose effect is exerted only on neighboring cells in the immediate environment of thier site of secretion

e. are very short range chemical mediators released by neurons in response to action potentials

e.

mauvehippopotamus741

match the decription

1. swelled base of the hair

2. the portion of the hair that exits the skin surface

3. the portion of the hair contained within the skin

4. small muscles attached to the base of the hair follicle

5. oil-secreting glands that connect to the hair follicle

A.arrector pilli

B. bulb

C. root

D. sebaceous gland

E. Shaft

Indentify the regions of the body where apocrine glands are located

A. anal

B.axillary

C.femoral

D. frontal

E. Pubic