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Hamsters (Laboratory) - Pathology (view source)
Revision as of 12:51, 6 January 2011
, 12:51, 6 January 2011→Anatomy and Histology
===Integumentary System===
===Integumentary System===
'''Hip/Flank Glands'''
'''Hip/Flank Glands'''
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Sebaceous glands with pigmented cells and terminal hairs that secrete during sexual arounsal in both sexes. Also used for olfactory territorial marking.
Sebaceous glands with pigmented cells and terminal hairs that secrete during sexual arounsal in both sexes. Also used for olfactory territorial marking.
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===Reproductive System===
===Reproductive System===
'''Vaginal Discharge'''
'''Vaginal Discharge'''
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Post-ovulatory dimethyl disulphide is used as a breeding tool by females but is often mistaken for an inflammatory exudate due to its similarity in smell to rotten eggs.
Post-ovulatory dimethyl disulphide is used as a breeding tool by females but is often mistaken for an inflammatory exudate due to its similarity in smell to rotten eggs.
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'''Sexual Dimorphism'''
'''Sexual Dimorphism'''
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Male Syrian hamsters have much larger adrenal glands than females despite females being generally larger than males.
Male Syrian hamsters have much larger adrenal glands than females despite females being generally larger than males.
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'''Fostering Newborn'''
'''Fostering Newborn'''
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This is not usually possible in hamsters as infants are extremely immature when born and 'foreign' infants usually do not accept one another.
This is not usually possible in hamsters as infants are extremely immature when born and 'foreign' infants usually do not accept one another.
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===Urinary System===
===Urinary System===
'''Kidneys'''
'''Kidneys'''
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Extremely long papillae extending into ureters. Very developed water conservation systems.
Extremely long papillae extending into ureters. Very developed water conservation systems.
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===Cardio-Respiratory System===
===Cardio-Respiratory System===
'''Heart'''
'''Heart'''
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The Purkinje network and sino-atrial node are easily accessible surgically and is a useful physiological feature for some experiments.
The Purkinje network and sino-atrial node are easily accessible surgically and is a useful physiological feature for some experiments.
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===Digestive System===
===Digestive System===
'''Cheek Pouches'''
'''Cheek Pouches'''
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Hamsters have highly distensible evaginations of the lateral buccal walls which are used to store and transport food.
Hamsters have highly distensible evaginations of the lateral buccal walls which are used to store and transport food.
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'''GI Physiology'''
'''GI Physiology'''
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Long duodenum, long jejunum, short ileum, big cecum, long colon.
Long duodenum, long jejunum, short ileum, big cecum, long colon.
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'''Stomach'''
'''Stomach'''
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Distinct constriction between the forestomach and glandular stomach. No lesser curvature of the stomach resulting in two blind sacs. Pregastric fermentation occurs in hamsters.
Distinct constriction between the forestomach and glandular stomach. No lesser curvature of the stomach resulting in two blind sacs. Pregastric fermentation occurs in hamsters.
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'''Cecum'''
'''Cecum'''
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Apical an basal portions seperated by a semilunar valve. There are a series of 4 valves in the ileocecolic area.
Apical an basal portions seperated by a semilunar valve. There are a series of 4 valves in the ileocecolic area.