Biology 161 Lab 4 - Blood Vessels, Lymphatics, Pressure Points, Surface Anatomy Scott.lehbauer@lethbridgecollege.ab.ca

The Arteries Circle of Willis - also called the cerebral arterial circle this structure surrounds the pituitary gland and optic chiasma. It connects the anterior and posterior blood supply to the brain. It also equalizes blood pressure in the two brain regions and provides alternate routes for blood to reach the brain tissue in case of blockage to the carotid or vertebral arteries. The Circle of Willis

The Circle of Willis Basilar Artery Internal Carotid Artery Vertebral Arteries

Arteries of the Neck and Face Internal Carotid Artery External Carotid Artery Superficial Temporal Artery Common Carotid Artery Vertebral Artery

Arteries coming off the Heart Right Common Carotid Left Common Carotid Right Subclavian Right Brachiocephalic Left Subclavian Aorta

Arteries of the Arm Axillary Artery Circumflex Scapular Artery

Arteries of the Arm Cont. Brachial Artery Radial Artery Median Artery Ulnar Artery Superficial Palmer Arch

Coronary Arteries (Left Side) Aortic Arch Left Coronary Artery Anterior Descending Artery Circumflex Artery

Right Coronary Artery and Cardiac Vein Great Cardiac Vein Right Coronary Artery

Arteries of the Torso Gastric Artery Stomach

Arteries of the Torso (Superior Mesenteric) Artery Superior Mesenteric Artery

Arteries of the Torso (Inferior Mesenteric) Artery Inferior Mesenteric Artery

Arteries of the Torso Hepatic Artery Liver

Arteries of the Torso (Celiac Trunk) Splenic Artery

Arteries of the Torso (Kidneys) Renal Artery Renal Vein

Arteries of the Torso (Iliac Arteries) Common Iliac Artery External Iliac Artery Internal Iliac Artery

Arteries of the Leg Femoral Artery

Arteries of the Leg Anterior Tibial Artery Popliteal Artery

Pressure Points Superficial Temporal a. - Are arteries that when compressed can stop blood flow into distal tissues during hemorrhage. Facial a. Subclavian a. Carotid a. Brachial a. Radial a. Femoral a. Popliteal a. Dorsal Pedal a.

Lymphatic System Lymph – Protein containing fluid transported by lymphatic vessels. Lymphatics – an elaborate system of drainage vessels that collect the excess protein-containing interstitial fluid and return it to the bloodstream. Lymph Node – a small lyphoid organ that filters lymph; they contain macrophages and lymphocytes.

Lymphatic System Cervical Thoracic Axillary Abdominal Cubital Inguinal Pelvic Popliteal

Lymphatic System Inguinal Lymph Nodes Axillary Lymph Nodes

Spirometry Tidal Volume – The amount of air that moves into then out of the lungs during normal quiet breathing. Vital Capacity – The total amount of exchangeable air in the lungs. Or the total amount of air blown out during one forced exhalation. There are 3 factors which influence vital capacity: 1.) Age 2.) Sex 3.) height