Frog Anatomy and Physiology

1
Frog Anatomy and Physiology

• By
• Chris Barr

2
The External Parts of a Frog

• Head
• Front Legs
• Fingers
• Palm
• Wrist
• Lower Arm
• Upper Arm
• Elbow

• Trunk
• Hind Legs
• Thigh
• Knee
• Ankle
• Sole
• Webbing
• Toes

3
The External Parts Functions

• The Frog body is divided into a head, a short
  neck and a trunk. The head contains a mouth,
  eyes, ears, nose, and, of course, a brain. Since
  their necks are so short they cant move their
  heads much. The stubby trunk forms walls for a
  single body cavity, the coelom.

4
Pictures
5
The Internal Parts of a Frog

• Male
• Large Intestine
• Small Intestine
• Lung Lobes
• Liver Lobes
• Heart
• Stomach
• Gall Bladder
• Testis
• Fat body
• Urinary bladder

• Female
• Liver Lobes
• Heart
• Ovary with eggs
• Gall Bladder
• Small Intestine
• Stomach
• Oviduct

6
The Internal Parts Functions

• Amphibian lungs are paired and they have a
  3-chambered heart, unlike mammals, which have
  4-chambered hearts.
• The frog's digestive system starts in the mouth
  with its tongue.
• For the most part, frog tongues are attached near
  the back of the jaw and folded on the base of the
  mouth with the tip of the tongue pointing back
  toward its throat. Their tongues can be flipped
  out very rapidly and accurately in order to catch
  an insect.
• Most frogs do have tooth-like structures which
  are attached to the jaw and aid in breaking up
  the food so that it can be digested.
• The food then goes down their short esophagus
  into the stomach, where the food is digested. The
  waste goes into the coiled, winding intestines
  where it can be later removed.

7
Pictures
8
Resources

• Frog Biology - http//www.biology.about.com/scienc
  e/biology/library/blfrogdissect.htm
• Frog Biology - http//library.thinkquest.org/11034
  /anat.htm
• Anatomy of Amphibians - http//www.lookd.com/frogs
  /anatomy.html
• Images - http//www-itg.lbl.gov/ITG/Whole.Frog/fro
  g/frog.anatomy.html