Torso Organ definitions

Nervous System

Control of body functions, homeostasis, responds to stimuli

Brain

Controls body functions. Integrates information

Spinal cord

Communication area, reflexes

Cardiovascular System

Transports water and CO2 away from cells and nutrients and O2, towards cells, contains blood

Inferior Vena Cava

Returns deoxygenated blood to the heart from the lower part of the body

Descending Aorta

Carries oxygenated blood from the heart to the lower part of the body

Respiratory system

Brings O2 in and CO2 out of the body

trachea

Conduit for O2 and CO2

L/R lung

Area of gas exchange

L/R primary bronchus

Conduit for O2 and CO2

Diaphragm

Causes thoracic cavity pressure to decrease allowing lungs to inspire air, relaxation causes exhalation

Digestive System

Ingestion, digestion, absorption, elimination of solid wastes

Esophagus

Conduit for food

Stomach

Digest protein and stores and mixes food

Pancreas

Makes alkaline pancreatic juices and digestive enzymes

Liver

Process nutrients, stores glucose as glycogen, produces biles, and detoxifies

Gallbladder

Stores bile

Small Intestine

Produces digestive enzymes, absorbs digested food, destroys accumulated bacteria

Large Intestine

Reaborbss water and electrolytes

Appendix

Vestilgial appendage, prone to infection

Mesentery

Covers organs, membrane netting that allows blood and nerves to supply abdominal cavity organs, suspends organs

Cecum

Proximal portion of large intestine

Anus

Opening and discharge of solid waste

Endocrine System

Production of hormones, homeostasis

L/R Adrenal Glands

Produces hormones

Thyroid

Produces hormones

Urinary System

Removal of liquid nitrogenous waste. Responsible for water, electrolyte, acid/base balance of blood

L/R kidney

Filters blood, produces urine

L/R ureter

Conduit for urine

Urinary Bladder

Conduit for urine, storage

Female Reproductive System

Production of germ cells/egg

Ovary

Produces female gamete

Uterine Tube (Fallopian)

Conduit of zygote and ovum

Uterus

Incubation area for embryo/fetus

Vagina

Copulatory organ, Birth and menstrual canal

Vaginal Orifice

orifice

Male Reproductive System

Product of germ cells

Scrotum

Repository for testes

Testes

Produce male gametes

Ductus (Vas) Deferens

Conduit for sperm

Prostate Gland

Produces alkaline secretion that activates sperm

Penis

Copulatory organ

Immune/Lymphatic System

Guards body from microbial invasion, absorbs and transport of lymph

Spleen

Red blood cells graveyard, contains lymphocytes (WBCs)

Axillary Lymph nodes

Upper body, filter fluid, immune defense, track disease

Axillary Lymphatics

Upper body, filter fluid, immune defense, track disease

Inguinal Lymph nodes

Lower body, filter fluid, immune defense, track disease

Inguinal Lymphatics

Lower body, filter fluid, immune defense, track disease