Dissections Test Practice

Structures, their locations, and what they do, in frogs and fetal pigs

What bone is this

femur

What bone is circled

Humerus

Why is the cloaca both excretory and reproductive?

Holds the products of both systems

ear technical term

Pinnae

What’s this structure

Lung

What’s this structure

Testes

Function of this organ?

Is liver, so filtering impurities from the blood

This tissue that holds organs in place

Messentery

Where does the umbilical vein in the pig lead to?

The liver

How to tell difference between trachea and esophagus?

The trachea has large rings of cartilage around it

Sex of this pig?

Female (bc opening posterior to the umbilical chord)

What is the circled organ?

Spleen

What two systems make up the urogenital system?

Excretory and reproductive

What chamber of heart is more muscular?

Ventricle

What muscle is this

Triceps femoris

Why is the pigs head soft

Skull isn’t fully formed to let head pass thru birth canal

What membrane is this

Tympanic membrane

What’s this structure

Epiglottis

Body cavity where all internal organs are inside of

Coelom

What separates abdominal and chest cavity?

Diaphragm

What is this structure

Stomach

Does frog have diaphragm?

Nopesies

What’s the structure

Liver

What major skeleton is missing in the frog?

Ribs

What bone?

Radio-ulna

What structure (frog)

Fat bodies

What structure

Heart

Function?

Is heart, so pump blood to body

Is in chest cavity, what is it?

Lung

What part of the heart is this

Atrium

What structure? (Frog)

Lungs

How is frogs skin adapted for respiration

Water with oxygen diffused thru skin

What does this muscle do when contracted and stretched

Moves knee and leg

Tiny projections along small intestine

Vili

What does this do (pig)

Is umbilical chord, so carry nutrients to fetus thru blood vessels

What’s this structure in humans

Is tympanic membrane, so ear/eardrum

Advantage of position of frogs eyes?

Better peripheral vision

What’s this structure

Trachea