Systemic Circulation Flashcards
Parasympathetic to SA node
Release ACh to decrease blood flow
Sympathetic to SA node
Release NE to increase blood flow
Parasympathetic nerve to SA
Vagus Nerve
Sympathetic nerve to SA
Cervical and upper thoracic chain ganglion
Blood supply to upper limb
subclavian artery
point of Subclavian to Axillary artery
First rib
point of Axillary to Brachial artery
Teres Major
Brachiocephalic artery branches to
Right common carotid artery
Right subclavian artery
Common carotid artery branch to
Internal and External carotid arteries
Internal Carotid artery
travel up carotid canal and make circle of Willis
External Carotid artery
travel superficailly for face
Carotid Sinus checks
BP
Carotid Body checks
O2
Carotid Body innervated by
Glossopharyngeal nerve
Circle of Willis location
Surround pituitary gland
cirlce of Willis anastamoses of
Interal carotid artery, Vetebral arteries(2) -> Basilar artery
Internal carotid artery branches
anterior cerebral artery
anterior communicating artery
posterior communicating artery
Posterior carotid artery branch from
Basilar artery
Stroke
Focal neurological deficit due to lack of blood supply
Aneurysm
Abnormal widening of artery
comes with thunderclap headache when rupture
Blood will fill subarachnoid space
Causes of aneurysms
congential
high blood pressure
high cholestrol
Ischemia
lack of oxygen
External carotid artery branches
3 anterior branches
superior thyroidal
lingual
facial
2 posterior branches
occipital
region of posterior auricular
2 terminal branches
superficial temporal
maxillary
superior thyroidal artery
goes to thyroid gland
Lingual artery
tongue
Facial artery
travel over mandible (superficial)
Occipital artery
occipial region of scalp
Region of Posterior auricular artery
behind ear & scalp
superficial temporal artery
temporal region, in front of external ear
Maxillary artery
deep in maxilla and mandible
Subclavian artery give off 4 branches
Vertebral, Internal thoracic , thyrocervical trunk, costcocervical trunk
Vertebral artery
Circle of Willis,
travel up transverce foramina
enters skull through foramen magnum
Right and left join to form basillar artery
Interal thoracic
either side of sternum on the inside of thoracic cage
Form intercostal arteries
Supply intercostal muscles, mediastinum, diaphragm
Thyrocervical
gives off inferior thyroid artery
branches to neck/shoulder scapular muscles
Costcocervical
gives rise to superior intercostal arteries
First 2 intercostal spaces
Axillary artery branches to 6
Superior thoracic thoracoacromial lateral thoracic subscapular posterior humeral circumflex anterior humeral circumflex (anatasmose)
3 regions of Axillary artery
before pectoralis - superior thoracic under pectoralis - lateral thoracic - thoracoacromial after pectoralis - subscapular - anterior humeral complex - posterior humeral complex
Brachial artery location
start at teres major
end at cubital fossa of elbow
Brachial artery branches to
Radial artery
Ulnar artery
Brachial artery supply
Anterior muscles of arm
Profunda brachii artery
branch from brachial artery and travels behind humerus to supply posterior compartment
Purpose of collateral arteries around elbow
blood supply bloked when flexing
Radial artery supply
anterior compartment of forearm
travel to anatomical snuff box
Deep palmar arch from
radial artery
Ulnar artery give rise to
superficial palmar arch
common interosseous artery
common interosseous artery branches to
anterior and posterior branch
posterior branch supply posterior forearm
anterior intercostal arteries anastomoses with
posterior intercostal arteries
Descending aorta branches through thorax and gives rise to
Bronchial branches Esophgeal branches Posterior intercostal ateries (9) Pericardial branches Superior phrenic branches Subcostal artery
Thoracic aorta travel down through ___ into abdomen
diaphragm of T12
Hiatis for inferior VC
T8
Hiatis for esophagus
T10
Aortic Hiatis
T12
Abdominal aorta 3 single branches
Celiac Trunk
Superior Mesenteric Artery
Inferior Mesenteric Artery
Celiac trunk
1cm long
branches to feed digestive organs
Superior Mesenteric artery
supply small intestine and some large intestine
Inferior Mesenteric artery
supply large intestine
Abdominal aorta paired branches
Renal arteries
Suprarenal arteries
Gonadal arteries
Lumbar arteries
before abdominal aorta bifurcates
gives off 3 or 4 lumbar arteries for vertebral column
Abdominal aorta bifurcates to ____
right and left common iliac arteries
Also small median sacral artery
Iliac arteries branch to
Internal iliac arteries
External iliac arteries - supply lower limb
External iliac artery branches to
Femoral artery
Femoral artery supplies
anterior thigh
Femoral artery travels through _________ of ____ and travels back to the knee and changes name to ____
adductor hiatus, adductor magnus muscle, popliteal artery
popliteal artery branches to
anterior tibial artery - anterior supply
posterior tibial artery - posterior supply
fibular artery - lateral supply
Obturator artery from
internal iliac artery
Obturator artery supply
medial compartment of thigh
Pulse points 9
Temporal artery Facial artery Common carotid artery Brachial artery Radial artery Femoral artery Popliteal artery Posterior tibial artery Dorsalis Pedis artery
