Unit 5 Lab

Mechanical digestion

Mechanically digesting food (chewing)

intrinsic factors

Digest B12

Parietal cells in gastric glands

Secrete HCL; intrinsic factor

Chief cells in gastric glands of mucosa layer

Secrete pepsinogen and gastric lipase

Submucosal gland in duodenum and small intestine

Secrete bicarbonate to neutralize stomach acid

Internal anal sphincter

Smooth muscle

External anal sphincter

Skeletal muscle; contracts when ready to release feces

Myenteric plexus in longitudinal layer

Responsible for movement of alimentary canal

Peyer’s patch in ileum

Lymphatic tissue/vessel present in the submucosa of ileum near the entry of the large intestine; secretes antimicrobial agents to stop infection

Mucous cells

Secrete mucous to protect lining from Gastric Juice

Tenia coli in large intestine

Longitudinal band of smooth muscle

Endocrine cells in pancreas

Pancreatic islets

Exocrine cells in pancreas

Acinar (acini) cells

Bile

Digest fats

Liver produces

Bile to digest fatty meals

Bile ducts are made from

Cuboidal epithelium

Hepatic portal vein

Blood comes from digestive organs

Aciniar (acini) cells function

Store and secrete digestive enzymes

Interstitial cells in testes

Secrete testosterone

Mid piece of sperm

Contains mitochondria

Tail of sperm

Flagellum

Vaginal canal

Rugae and grooves to increase surface area and expand when baby is pushed through canal

External and internal OS in female uterus and cervix

Sperm travels into vaginal canal through these two openings to get into the fallopian tube

Uterus innermost layer

Endometrium; engorge with blood and multiply in size during 28 day uterine cycle to prepare for implantation or to not implant a fertilized egg

Myometrium layer in uterus

Smooth muscle; contributes to contractions to help push baby out using oxytocin hormone

Broad ligament uterus

Extends through fallopian tubes and extends down through the length of the uterus to support macro structures

Fimbriae on fallopian tube

During ovulation these feather-like projections sweep and pull the egg to go into the fallopian tubes where the egg will either be fertilized or not

Corpus luteum

Produces estrogen and progesterone to keep lining of uterus intact so that it’s not shed. Produces these hormones for 14 days, and if there is no pregnancy, corpus luteum will slowly degenerate into corpus albicans. If there is a pregnancy, corpus luteum will keep producing hormones until placenta forms.