Rat Dissection Anatomy

Created by J-Townsend 

Upgrade to
remove ads

58 terms

Ears

sensory organ that can distinguish pitch and loudness of vibrations in the air around us

Whiskers

specialized hairs that are used for feeling around in the dark

Nostrils

allows air to flow into body, and is an opening in nose, sense of smell

Anus

external opening of the rectum, part of excretory system, controls the expulsion of feces and waste

Tail

flexible appendage that functions as way to balance and as a heat loss organ

Claws

used to fend off prey to protect themselves and to get food and compete with other rats

Teeth

part of digestive system, chew up food, gnawing ability in rats

Testicles

male reproductive gland that produce and store sperm

Muscles

Three difference types of muscle (smooth, skeletal, cardiac), voluntary movements, involuntary movements, and in the heart

Bones

support the body, protects internal organs, movement, mineral reserves, blood formation

Tendons

connect muscles to bones and are a form of connective tissue

Ligaments

connect bone to hold the bones together

Peritoneum

covers the abdominal organs, membrane that forms the lining of the abdominal cavity

Mesentery

membrane that surrounds and supports the digestive system

Vasculature

blood vessels that are a part of circulatory system

Fat

saturated and unsaturated fats, stored energy for organism

Liver

produces bile that dissolves and disperses fat, allowing enzymes to reach the fat

Spleen

store red and white blood cells, part of the lymphatic system

Diaphragm muscle

large flat muscle that allows for breathing by contracting and expanding and changing the volume of the chest cavity

Stomach

continues mechanical digestion of food with contractions of smooth muscle, contains mucus, hydrochloric aced and enzyme pepsin

Pylorus

muscle in stomach that connects to the duodenum

Esophagus

food tube tat leads to the stomach where bolus passes through, moves through peristalsis

Pyloric sphincter

a muscular valve that lets food pass from the stomach to the duodenum

Small intestine

adapted to absorb nutrients with projections called villi

Duodenum

first section of small intestine where the stomach joins the small intestine

Large intestine

removes water from undigested materials called feces

Pancreas

controls blood sugar levels with hormone commands to the leaver

Kidneys

excrete waste, filter blood, and regulate the pH levels of the blood, remove urine and water from body

Abdominal Aorta

is a portion of the descending aorta that carries oxygenated blood to bottom part of the body

Inferior Vena Cava

takes deoxygenated blood from the bottom of body and brings it to heart

Adrenal glands

release many hormones

Urinary bladder

saclike organ where urine is stored before it is excreted

Ureters

tube that leaves kidney and carries urine to urinary bladder

Urethra

tube where urine exits the body, as well as sperm

Ovaries

produce egg cells in females

Oviducts

passageway from ovary to outside of the body

Uterus

sex organ that connects the vagina to the urogenital opening, where fetus develops

Vagina

tract that leads from uterus to outside of the body

Scrotum

skin and muscle that contain the testes

Epididymis

stores sperm and leads to vas deferens

Vas deferens

tube that attaches to the urethra and carries sperm from epididymis

Urethra

carries sperm out of the body through the penis

Penis

male reproductive organ that releases sperm and urine

Prostate

release alkaline fluid that constitutes much of the volume of semen

Membranes

barrier of an organ, lubricated surface, allow two sets of organs to move vigorously without wearing each other away

Pericardium

protective sac of tissue that covers the heart

Lungs

where blood picks up oxygen and gets rid of carbon dioxide

Lobes

a division of a bodily organ

Right Atrium

receives blood from the superior and inferior vena cavas

Left atrium

receives freshly oxygenated blood from the lungs via the pulmonary vien

Left ventricle

sends oxygenated blood out the descending and ascending aortas to the body

Vena Cavas

veins that take the deoxygenated blood towards the heart and bring to right atrium

Pulmonary Vein

takes oxygenated blood from the lungs to the heart (left atrium)

Ascending and Descending Aorta

carries oxygenated blood from heart to the rest of the body

Coronary arteries

blood vessels across the heart that branch off the aorta and feed the heart muscle

Thymus gland

helps the immune system develop and recognize what is an enemy and what is not

Trachea

wind pipe that transports air

Bronchi

leads to one of the lungs, subdivide into bronchioles, then subdivide until the reach the tiny air sacs called alveoli

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set