PRACTICAL 3

Identify organ

esophagus

identify structures a-c

a- mucosa

b- submucosa

c- muscularis externa

esophagus is what type of epithelial tissue?

non keratinized stratified squamous epithelium

function of esophagus (about 4)

1. transport

2. protection

3. lubrication

^ regarding food

4. prevent backflow/reflux (keeps stomach contents from moving back up)

identify organ

stomach pyloric region

identify structures A-D

a- mucosa

b- submucosa

c- muscularis

d - serosa

what type of epithelial tissue is stomach?

simple columnar epithelium

what is the function of stomach tissue/organ? (2)

• mechanical and chemical digestion

• protect stomach lining from acids

name structure

duodenum

label structures a-d

a- mucosa

b- submucosa

c- muscularis

d-serosa

what type of epithelial tissue is the duodenum?

simple columnar epithelium

what is the function of duodenum tissue/organ

• chemical digestion

• begins absorption of nutrients like sugars, amino acids and some lipids

identify structure

small intestine

identify pointed structure

goblet cell

name type of epithelial tissue of small intestine

simple columnar

function of small intestine (3)

1. fina breakdown of food

2. nutrient absorption (sugar, amino acids, fatty acids, vitamins and minerals)

3. secretion of mucus

name organ structure

Ilium

name structure that needle is pointing at

peyers patches

type of epithelial tissue of ilium

simple columnar epithelium

function of ilium

• absorption of vitamin b12, bile salts, water and electrolytes

• immune defense (peyers patches detect and respond to pathogens)

name organ

pancreas

what are the circled structures

acinar cells

type of epithelial tissue of pancreas (with acinar cells)

simple cuboidal epithelium

list functions of pancreas

• produce digestive enzymes and bicarbonate (exocrine)

• produce insulin and glucagon (endocrine)

function of acinar cells

synthesize and secrete inactive digestive enzymes: trypsiongen and chymotrypsinogen

name organ structure

liver mammal

name pointed structure

central vein

central vein is lined by which epithelial type

simple squamous

name organ

liver with hepatitis

function of liver

• metabolism of carbs fats and protein

• detoxification of drugs, alcohol and toxins

• bile production

functions of central vein

• collect processed blood from liver sinusoids

• drains blood out of liver lobule into hepatic veins

name organ

kidney mammal

identify a and b

a- glomerulus

b- bowman’s capsule

identify structure

mammal ovary

identify the pointed structure

follicle with egg

identify structure

oviduct fimbriated extremity

in this slide what are the finger like projections

fimbriae

identify structure and type of epithelium that lines this organ

ureter

transitional epithelium

identify a and b

a - epididymis

b- testis (seminiferous tubules)

identify structure

penis (primate)

identify organ structure and glands

uterine/uterus secretory phase

uterine (endometrial) glands