Related Experiment Video
Updated: Apr 11, 2026
08:39
Ferric Chloride-induced Canine Carotid Artery Thrombosis: A Large Animal Model of Vascular Injury
Published on: September 7, 2018
9.7K
Cranial Arterial Patterning in Greyhounds: Another Case of Internal Intraspecific Variation
S Pols1, M Henneberg2, R Norris1
1University of Adelaide, School of Animal and Veterinary Science, Mudla Wirra Road, Roseworthy, SA, 5371, Australia.
Anatomia, Histologia, Embryologia
|May 27, 2015
Summary
Greyhound subclavian artery branching patterns show significant left-right asymmetry. These breed-specific cardiovascular variations highlight differences in canine anatomy.
Area of Science:
- Veterinary Anatomy
- Comparative Cardiovascular Science
Background:
- Greyhounds are specialized for high-speed sprinting.
- Their unique anatomy supports this function, including vasculature.
- Subclavian artery branching patterns are crucial for blood supply to the forelimbs and thorax.
Purpose of the Study:
- To describe and analyze the branching patterns of subclavian arteries in greyhounds.
- To investigate potential sex- or symmetry-related differences in these patterns.
- To identify breed-specific cardiovascular variations in domestic dogs.
Main Methods:
- Silicone casts of the aorta and cranial arteries from 34 greyhound cadavers.
- Measurements scaled to Open Thorax Length (OTL) for size correction.
- Statistical analysis including Chi-squared tests and t-tests.
Main Results:
- Significant differences observed between left and right subclavian arteries.
- Right subclavian artery had a greater length to the first branch (as % OTL).
- Left subclavian artery had a larger branching interval (as % OTL).
Conclusions:
- Intraspecific variations in subclavian artery branching exist in greyhounds.
- These findings suggest potential breed-specific cardiovascular system variations in dogs.
- Further research is needed to understand the functional implications of these asymmetries.
Related Concept Videos
01:26Arteries of the Head and Neck
4.5K
The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
4.5K
01:10The Arch of Aorta
2.3K
The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Encircling the heart, the coronary arteries form a ring-like structure before...
2.3K
01:07Development of Blood Vessels
2.0K
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
2.0K
01:20Anatomy of Blood Vessels
4.0K
The vascular system, an integral part of the circulatory system, comprises various blood vessels that play crucial roles in maintaining the body's homeostasis. These blood vessels form a complex and efficient circulatory network. The three primary categories of blood vessels are the arteries, veins, and capillaries.
Arteries
Arteries circulate oxygenated blood from the heart, except the pulmonary artery, which transports deoxygenated blood to the lungs. Large arteries, such as the aorta,...
Arteries
Arteries circulate oxygenated blood from the heart, except the pulmonary artery, which transports deoxygenated blood to the lungs. Large arteries, such as the aorta,...
4.0K