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Frog Dissection Guide Drawings

Frog- circulatory system
A    Arteries B    Veins
1-16    Arteries
2 Internal carotid
3 External carotid
4 Cutaneous
5 Subclavian
6 Pulmonary
7 Systemic arch
8 Genital
9 Renal
10 Dorsal aorta
17-36    Veins
19 Internal jugular
20 External jugular           21 Subscapular                  
22  Anterior vena cava
23 Pulmonary
33 Posterior vena cava 

 

Frog- digestive system
A    Mouth
B    Digestive system (lower jaw removed
1    Vomerine teeth
2    Internal nostril
3    Maxillary teeth
4    Entrance to esophagus
5    Glottis
6    Tongue
7    Eustachian tube
8    Liver (pulled back)
9    Gall bladder
10    Pancreas
11    Small intestine
12    Cloaca
13    Esophagus
14    Hepatopancreatic duct
15    Stomach
16    Duodenum
17    Large intestine
18    Bladder 		 

Frog-
external form
1    Head
2    Hand
3    Trunk
4    Foot
5    Hindlimb
6    Forelimb
7    Thigh
8    Shank
9    Ankle
10    Webbed toes
11    Wrist
12    Finger
13    Upper arm
14    Ear drum
15    Eye
16    Mouth
17    External nostril 		 

Frog- reproductive and excretory systems
A    Female
B    Male
1    Oviduct
2    Fat body
3    Kidney
4    Ovary
5    Adrenal gland
6    Wolffian duct (ureter)
7    Ovisac
8    Rectum
9    Cloaca
10    Bladder
11    Testis
12    Vas efferens
13    Seminal vesicle 		 

Frog- skeleton
Right suprascapula removed
1    Premaxilla
2    Nasal
3    Frontoparietal
4    Prootic
5    Quadratojugal
6    Squamosal
7    Clavicle
8    Coracoid
9    Ilium
10    Urostyle
11    Tibiofibula
12    Femur
13    Ischium
14Calcaneum-fibulare)
15 Astralagus (tibiale)
16    Tarsals
17    Metatarsals
18    Phalanges
19    Sacral vertebra
20    Vertebra
21    Radioulna
22    Carpals
23    Metacarpals
24    Humerus
25    Suprascapula
26    Exoccipital
27    Pterygoid
28    Maxilla
29    Sphenethmoid

Frog- nervous system

Ventral view
1-10    Cranial nerves
11-20    Spinal nerves
23    Sympathetic nerve cord
26    Spinal cord
29    Pituitary
30    Optic lobe
32    Cerebral hemisphere
33    Olfactory lobe
34    Eyeball

 

Cranial Nerves

No

Name Origin Distribution Sensory or
Motor
1 Olfactory Olfactory lobe Lining of the nose Sensory
2 Optic Posterior floor
of cerebral
hemispheres 		Retina of eye Sensory
3 Oculomotor Ventral midbrain Eye muscles Motor
4 Trochlear Dorsal midbrain Superior oblique muscle of eye Motor
5 Trigeminal Side of medulla Skin of mouth, face Both
6 Abducens Ventral medulla External rectus eye muscle Motor
7 Facial Side of medulla Face muscles Both
8 Auditory Side of medulla Ear Sensory
9 Glosso- pharyngeal Side of medulla Pharynx, tongue Both
10 Vagus Side of medulla Visceral arches,lungs,heart,stomach,intestine Both