Download Frog Lab Checklists

Anatomy and Physiology
Fisher
RECORD SHEET
Directions: Locate each of the listed structures on your bullfrog specimen. As you locate the structure,
put a checkmark next to the name of the structure. At the end of each section, you will see a signal to
STOP. When you reach this point, please raise your hand and Ms. Fisher will come over to your table.
At that time, you will need to quickly and efficiently show Fisher the structures on the specimen. Fisher
will stamp that section, indicating completion. Once the stamp is provided, please continue to the next
section. Please refer to the frog dissection handouts to help you identify the locations of the various
structures as well as their functions. By the end of the dissection, you should be familiar with not only
the location, but also the function of each of the structures you identify.
I. External Characteristics
Structure
ID (√)
Dorsal side
Ventral side
Tongue attachment
External Nares
Internal Nares
Vomerine teeth
Maxillary teeth
Eyes
Upper Eyelid
Lower Eyelid
Nictitating Membrane
Tympanic Membrane
Digits
Male/Female?
STAMP:______________
1
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
II. Integumentary System
General Observations
III. Muscular System –Muscles of the Leg
Structure
ID (√)
Triceps femoris
Biceps femoris
Sartorius
Gracilis major
Gracilis minor
Adductor magnus
Peroneus
Gastrocnemius
Achilles tendon (not a muscle)
STAMP:______________
2
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
REFLECTION QUESTIONS
1. What can you say about the frog’s habitat by looking at its external characteristics such as its
skin coloration, external nares, and eye structure and position?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
2. How does the frog’s skin differ significantly from human skin? How are the functions of the
integumentary system in both species similar? How are they different?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
3. How does the muscular system of the frog indicate the type of lifestyle and activities the frog
participates in? How are these different from the human?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
4. What similarities exist between the frog’s musculature, and the human’s?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
V. Reproductive System
Structure
ID (√)
Fat bodies
Eggs?
Ovaries
Oviducts
Testes?
Vestigial Oviducts
STAMP:______________
3
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
VI. Digestive System
Structure
ID (√)
Liver (3 lobes)
Gall bladder
Cystic duct
Glottis
Esophagus
Stomach
Internal wall of stomach
Internal contents of stomach
Small intestine
Large Intestine
Mesentary
Pancreas
Stomach
Observations: Stomach Contents/Structure
STAMP:______________
4
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
REFLECTION QUESTIONS
1. How is fertilization in frogs different from that in humans?
______________________________________________________________________________
2. What accommodations must a female frog make to support her eggs? Do human females
make similar accommodations to support a fetus? Explain.
______________________________________________________________________________
______________________________________________________________________________
3. Which two organs does the cystic duct connect? What three organs does the common bile
duct connect? What substances pass through these ducts?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
4. What tissues make up the walls of the stomach? How does this aid in stomach function?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
5. Based on the functions of the small intestine and large intestine, what is one reason the large
intestine is so much shorter?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
VII. Cardiovascular System
Structure
ID (√)
Heart
Thoracic cavity
Pericardium
3 chambers of the heart: 1 ventricle, 2 atria
Systemic arch (aorta)
Dorsal Aorta
Pulmonary artery
Coronary artery
5
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
Coeliaco-mesenteric artery
Carotid artery
Jugular vein
Renal artery
Renal vein
Observations: Drawings under Dissection Scope
STAMP:______________
6
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
VIII. Respiratory System
Structure
ID (√)
Diaphragm
Lungs (R and L)
Trachea
Bronchii (2)
Bronchioles
Observations: Drawings under Dissection Scope
STAMP:______________
7
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
REFLECTION QUESTIONS
1. Frogs have a three chambered heart, humans is four. How are three chambers less efficient
than 4?
______________________________________________________________________________
______________________________________________________________________________
2. What is an explanation for why the atria of the heart have a spongy texture, but the ventricles
smooth?
______________________________________________________________________________
_____________________________________________________________________________
3. Describe the texture of the lung in the frog. Would you think human lung texture would be
similar or different? Explain.
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
4. By what process does oxygen get picked up and carbon dioxide dumped off in the lungs? Is
this the same process in the human as it is in the frog?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
IX. Excretory System
Structure
ID (√)
Kidneys
Renal artery—see Cardiovascular System
Renal vein—see Cardiovascular System
Renal pelvis
Kidney duct?
Ureters
Urinary bladder
8
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
Observations: Drawings under Dissection Scope
STAMP:______________
9
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
REFLECTION QUESTIONS
1. What is the texture of the kidney? How does this texture fit its function?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
2. Look up the internal functions of the kidney using your text. The kidney performs 3 functions,
what are these functions?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
3. How is urine produced in the kidney? Both the frog kidney and human function similarly.
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
4. What is the internal anatomy of the kidney? Describe the components of one nephron and
how these combine to form a kidney.
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
10
modified 6/29/2017
Anatomy and Physiology
Fisher
RECORD SHEET
XI. Nervous System
Structure
ID (√)
Forebrain
Midbrain
Hindbrain
Right hemisphere
Left hemisphere
Olfactory lobe
Cerebrum
Cerebellum
Medulla oblongata
Spinal cord
STAMP:______________
REFLECTION QUESTIONS
1. How does the frog brain differ from the human brain?
______________________________________________________________________________
______________________________________________________________________________
What value is there to the frog, for having a brain that is so difficult to access?
______________________________________________________________________________
______________________________________________________________________________
2. If you were only given the skull of an organism, and you did not know anything else about the
organism, you should be able to identify whether it was a biped or quadruped animal. How?
______________________________________________________________________________
3. Given the relative size of the forebrain of the frog, what does this say about the frog’s mental
capacity?
______________________________________________________________________________
11
modified 6/29/2017