CARDIOVASCULAR SYSTEM: CIRCULATION and LYMPHATICS Flashcards
There are 3 types of blood vessel:
- Artery
- Vein
- Capillary
Hepatic portal vein
Oxygenated blood
The 3 layers of
tissue in arteries & veins
- Tunica intima
- Tunica media
- Tunica externa (or adventitia)
Anastamosis
branches of arterials provides alternative route for blood if blockages form
Arteriolosclerosis
disease where the arteries harden or
thicken
Blood pressure is controlled by
baroreceptors in
aortic arch and carotid sinuses
Hormonal control
Angiotensinogen
what is ACE
angiotensin converting enzyme
Open Circulatory System
Directly baths organs in blood- small organism
Closed ciculatory system
blood is fully enclosed within blood vessels at all times
The Cardiovascular System Of Vertebrates?
Single and double
Species that use a Single cardiovascular system
Fish
What species used double cardiovascular system
Mammals
SYSTEMIC CIRCULATION
Heart and tissue
PULMONARY CIRCULATION
Heart and lungs
Carotid arteries function
supply blood to the head/brain
Coronary arteries function
two arteries which
supply tissues of heart with
oxygenated blood
Arterial Circulation (8)
Renal
Hepatic
Ovarian and testicular:
Coeliac: stomach, liver, spleen
Mesenteric
Internal iliac
External iliac
Dorsal pedal and tarsal
Major Veins that drain into the right atrium
Cranial Vena Cava
Caudal Vena Cava
Azygous vein
Coronary veins
foetal shunts in circulatory system
Foramen ovale
‘hole in the heart’
Ductus arteriosus
Ductus venosus: a venous
Roles Of The Lymphatic System
Returning lymph back into the circulation
Removing bacteria and foreign material
Producing lymphocytes
Transporting products of fat digestion and fat soluble vitamins
Lacteals are located in
intestinal wall
The lymphatic system is made up of…? (6)
- Lymphatic capillaries
- Lymphatic vessels
- Lymphatic ducts
- Lymph nodes
- Lymphatic tissues
Right lymphatic duct drains
R side of head, neck, thorax and R Fore Leg,
empties into R jug/cranial VC
Thoracic duct collects lymph from
Most of body from cisterna chlyi
Tracheal ducts collects lympth from
head and neck
What are lymphatic tissues
Toncils
thymus
Spleen
Gut tissues
Trabeculae
network of fibres located in the lymph node
Where are lymphocytes produced
In lymph nodes cortex
lymphadenopathy
All lymph nodes are enlarged
Innate immunity
built in immunity
Acquired immunity
develops as we grow
Active Immunity
Acquired-
NATURAL
*ARTIFICIAL (vaccine)
.
Passive Immunity
NATURAL- when a mother
transfers antibodies to her offspring
ARTIFICIAL- intervention post exposure
