Frog Anatomy

1
Frog Anatomy
2
External Anatomy

• External nares or nostrils - Anterior openings
  for the entry or exit of air.
• Tympanic Membrane - The eardrum - receives sound
  waves
• Nictitating Membrane - A transparent part of a
  frogs lower eyelid that moves over the eye to
  clean it and protect it.

3
External Anatomy
4
Mouth Anatomy

• Eustachian Tube Openings Openings in the mouth
  that lead to tubes that connect to the middle ear
  to equalize air pressure
• Vomarine and Maxillary Teeth Used for holding
  prey
• Internal Nares (nostrils) Helps with breathing

5
Mouth Anatomy

• Esophagus Tube leading to the stomach
• Tongue Helps with grabbing and swallowing prey
• Glottis Tube leading to the lungs

6
Mouth Anatomy
7
Internal Anatomy

• Heart - Pumping organ of the circulatory system
  that has 3 chambers. The Left Atrium, The Right
  Atrium, and the Ventricle.
• Stomach - Stores food and mixes it with enzymes
  to begin digestion.

8
Internal Anatomy

• Liver - Secretes bile and helps digest food and
  filters blood.
• Lungs - Exchange point where carbon dioxide
  leaves and oxygen enters the blood helps the
  frog breathe.

9
Internal Anatomy

• Pancreas - Gland which secretes digestive
  enzymes.
• Gall Bladder - Sac which stores bile.
• Spleen - Organ in the frogs circulatory system
  that makes, stores, and destroys blood cells.

10
Internal Anatomy

• Small Intestine - The principal organ of
  digestion and absorption of digested food.
• Large Intestine - Posterior organ of the
  digestive system which stores undigested food.

11
Internal Anatomy

• Cloaca - Organ through which the frogs digestive
  waste and reproductive cells leave the body.
• Fat Bodies - Masses of fat in the body cavities
  of frogs.  Needed for hibernating and mating.

12
Internal Anatomy

• Kidneys - Organs that filter the blood and remove
  the wastes to make urine.
• Urinary Bladder - The organ that collects and
  stores urine until released.

13
Internal Anatomy

• Testes - Male sex organs that produce sex cells
  (sperm).
• Ovaries - Organs of the female reproductive
  system that produce the eggs.

14
Internal Anatomy
15
Internal Anatomy
16
(No Transcript)