Title: Rat Dissection
1 Rat Dissection
RATS
- The following slides are intended to helpyou
with dissection of the rat and then to review
for the lab practical that will follow.
2 Rat Dissection
RATS
- Scientific Name Rattus norvegicus
- Common Name Rat
- Kingdom- Animalia
- Phylum- Chordata
- Subphylum- Vertebrata
- Class- Mammalia
- Order- Rodentia
3Rat Dissection
SOURCES
- The following web sites were used to obtain
various dissection pictures. - (1) http//www.umanitoba.ca/faculties/science/biol
ogical_sciences/lab15/biolab15_1.html - (2) http//www.gisbornesc.vic.edu.au/home/jans/hom
e/rat.htm - (3) http//www.biologycorner.com/bio3/rat_guide.ht
ml - (4) http//www.biologymad.com/ratphotos/ratphotos.
htm - (5) http//www.baa.duke.edu/companat/BAA_289L_2004
/heart/Rat/rat_thorax.htm - (6) http//instruct1.cit.cornell.edu/courses/biog1
05/images/ratpics/unit6/ - (7) http//www.victoriacollege.edu/dept/bio/RatDis
section/index.htm This has an excellent self
quiz! - Urogenital Tutorial- http//www.biolsci.monash.edu
.au/undergrad/erat/index.html
4Rat Dissection
REMOVING SKIN
Source 4
5Rat Dissection
ORAL CAVITY
Source 6
6Rat Dissection
Throat
Source 6
7Rat Dissection
THROAT
8Rat Dissection
THROAT
9Rat Dissection
ABDOMINAL CAVITY
Source 7
10Rat Dissection
DIGESTIVE ORGANS
Source 1
11Rat Dissection
DIGESTIVE ORGANS
Source 5
12Rat Dissection
DIGESTIVE ORGANS
Source 6
13Rat Dissection
DIGESTIVE ORGANS
Source 6
14Rat Dissection
DIGESTIVE ORGANS
Source 6
15Rat Dissection
DIGESTIVE ORGANS
Source 1
16Rat Dissection
DIGESTIVE ORGANS
Source 1
17Rat Dissection
DIGESTIVE ORGANS
Source 1
18Rat Dissection
THORACIC CAVITY
Source 1
19Rat Dissection
HEART LUNGS
Source 5
20Rat Dissection
RESPIRATORY ORGANS
Source 1
21Rat Dissection
CIRCULATORY ORGANS
Source 1
22Rat Dissection
HEART
Source 5
23Rat Dissection
CIRCULATORY ORGANS
Source 1
24Rat Dissection
UROGENITAL ORGANS
Source 1
25Rat Dissection
EXCRETORY ORGANS
Source 5
26Rat Dissection
UROGENITAL ORGANS
Source 5
27Rat Dissection
Review and Quiz Yourself
THORACIC CAVITY
- Trachea
- Heart
- Lung
- Diaphragm
Source 2
28Rat Dissection
Review and Quiz Yourself
HEART
- Right Atrium
- Right Ventricle
- Left Atrium
- Left Ventricle
Source 2
29Rat Dissection
Review and Quiz Yourself
THORACIC CIRCULATION
- Jugular Vein
- Carotid Artery
- Superior Vena Cava
- AscendingAorta
- Atrium (right)
- Ventricles
Source 2
30Rat Dissection
ABDOMINAL CAVITY
- You should be familiar with the order of the
parts of the alimentary canal. Following the path
that food would take, we would pass through - Oral Cavity
- Pharynx
- Esophagus
- Stomach
- Pyloric Sphincter
- Small Intestine
- Duodenum
- Jejunum
- Ileum
- Large Intestine
- Cecum
- Colon - Ascending Limb - Transverse Limb -
Descending Limb - Rectum
- Anus
Source 1
31Rat Dissection
Review and Quiz Yourself
ABDOMINAL CAVITY
- 1. Liver
- 2. Stomach
- 3. Pancreas
- 4. Duodenum
- 5. Small Intestines
- 6. Cecum
- 7. Urinary Bladder
Source 2
32Rat Dissection
Review and Quiz Yourself
ABDOMINAL CIRCULATION
- 1. Abdominal Aorta
- 2. Renal Artery (left)
- 3. Renal Vein (left)
- 4. Inferior Vena Cava
- 5. Hepatic PortalVein
Source 2
33Rat Dissection
Review and Quiz Yourself
MALE REPRODUCTIVE ORGANS
- 1. Coagulating Gland
- 2. Urinary Bladder
- 3. Vas Deferens
- 4. Epididymis
- 5. Small Intestines
- 6. Seminal Vesicle
- 7. Prostate Gland
- 8. Penis
- 9. Testis
- 10.Scrotum
Source 2
34Rat Dissection
Review and Quiz Yourself
FEMALE REPRODUCTIVE ORGANS
- Stomach
- Kidney
- Ovary
- Oviduct
- Uterine Horn
- Large Intestine
- Urinary Bladder
Source 2
35Rat Dissection
Review and Quiz Yourself
TAGGED ORGANS
Masseter
BicepsBrachii
Rib Cage
Source 7
36Rat Dissection
Review and Quiz Yourself
TAGGED ORGANS
Esophagus
Lung
Trachea
Heart
Source 7
37Rat Dissection
Review and Quiz Yourself
TAGGED ORGANS
Diaphragm
Cecum
Liver
Ovary
Small Intestine
Spleen
Source 7
38Rat Dissection
Review and Quiz Yourself
TAGGED ORGANS
Urinary Bladder
UterineHorn
Source 7
39Rat Dissection
Review and Quiz Yourself
TAGGED ORGANS
Adrenal Gland
Kidney
Stomach
Ureter
Rectum
Source 7
40Rat Dissection
Review and Quiz Yourself
ANATOMICAL TERMS
NAME THAT FUNCTION
Heres a word bank to help you outCaudalCranial
DistalDorsalLateralMedialProximalVentral
- Toward the midline
- Toward the back (upper surface of body)
- Toward the tail
- Toward the side
- Farthest from the point of attachment
- Toward the belly (underside of body)
- Closest to the point of attachment
- Toward the head
Medial
Dorsal
Caudal
Lateral
Distal
Ventral
Proximal
Cranial
41Rat Dissection
Review and Quiz Yourself
ORGAN FUNCTION
NAME THAT ORGAN
Vibrissae
Heres a word bank to help you outMesenteryNare
sPeritoneumPinnaSeptumVibrissaeViscera
- The whiskers, which have a sensory function
- The flap-like external ear that directs sound
waves into the ear opening - Paired openings leading into the nose
- Organs of the thoracic and abdominal cavities
- A partition or wall separating 2 cavities
- A membrane which suspends the organs
- Shiny membrane that lines the abdominal cavity
Pinna
Nares
Viscera
Septum
Mesentery
Peritoneum
42Rat Dissection
Review and Quiz Yourself
ORGAN FUNCTION
NAME THAT ORGAN
Heres a word bank to help you outDiaphragmHard
PalateLungsSoft PalateTeethThymus
GlandThyroid GlandTongueTrachea
- Produces WBCs (White blood cells)
- Moves food in mouth and tastes
- Organs for gas exchange
- Windpipe leading from pharynx to lungs
- Bony anterior roof of mouth
- Muscular sheet that separates the thoracic and
abdominal cavities - Incisors (biting) and molars (grinding)
- Muscular posterior roof of mouth
- Affects metabolic rate and body growth
Thymus Gland
Tongue
Lungs
Trachae
Hard Palate
Diaphragm
Teeth
Soft Palate
Thyroid Gland
43Rat Dissection
Review and Quiz Yourself
ORGAN FUNCTION
NAME THAT ORGAN
Heres a word bank to help you outCecumEsophagu
sLarge IntestineLiverPancreasSmall
IntestineSpleenStomachRectumRugae
- Produces insulin for glucose metabolism
- Aids in digestion of proteins
- Food tube from pharynx to stomach
- Digests and absorbs nutrients
- Folds in stomach that help mix food
- Secretes bile, cleans blood, stores glycogen
- Cleans blood, removes old RBCs
- Reabsorption of water
- Blind pouch where ileum joins colon
- End of intestines, compaction of feces
Pancreas
Stomach
Esophagus
Small Intestines
Rugae
Liver
Spleen
Large Intestine
Cecum
Rectum
44Rat Dissection
Review and Quiz Yourself
ORGAN FUNCTION
NAME THAT ORGAN
Heres a word bank to help you outBladderKidney
OvaryProstateScrotumSeminal
VesicleTestesUreterUterine Horn
Kidney
- Removes wastes excess H20 from blood
- Houses developing fetuses
- Produces and stores sperm
- Stores urine before excretion
- Secretes a fluid that aids spermsurvival and
motility - Produces eggs
- Carry urine from kidney to bladder
- Secretes a fluid that nourishes sperm
- Sac that holds the testes
Uterine Horn
Testes
Bladder
Prostate
Ovary
Ureter
Seminal Vesicle
Scrotum
45Rat Dissection
Review and Quiz Yourself
ORGAN FUNCTION
NAME THAT ORGAN
Heres a word bank to help you outAbdominal
AortaAortaAtriaCommon CarotidPericardial
SacPulmonary ArteryRenal ArteryVena
CavaVentricles
Pulmonary Artery
- Takes blood from heart to lungs
- Large veins take blood to right atrium
- Top chambers, receive blood
- Membrane around heart
- Artery taking blood to head
- Bottom chambers that pump blood out
- Largest artery taking blood from left ventricle
- Lower descending aorta takes blood to lower
trunk and legs - Takes blood to kidneys
Vena Cava
Atria
Pericardial Sac
Common Carotid
Ventricles
Aorta
Abdominal Aorta
Renal Artery