Organs BIO 2215 Oklahoma City Community College Dennis Anderson

Energy From Food

Fig. 32.1e

Mouth Teeth: Tear and grind food. Types Incisors - chisel-shaped - cutting

Mouth Teeth: Tear and grind food. Types Canines - “eye-teeth” - tearing

Mouth Teeth: Tear and grind food. Types Premolars Molars - Broad crowns - grinding

Mouth Salivary Glands: Moisten food and contain enzymes for the breakdown of starchy foods.

Pharynx Common passageway for food and air. Pharynx

Stomach Storage of food and digestion of protein. Stomach

Small Intestine Majority of digestion and absorption occurs here.

Large Intestine - Sections 1. Cecum 2. Ascending Colon 3. Transverse Colon 4. Descending Colon 5. Sigmoid Colon 6. Rectum 7. Anus

Accessory Organs of Digestion Liver: Produces bile to aid in the digestion of lipids.

Gall Bladder and Pancreas Pancreas Duodenum Main pancreatic duct Common Bile Duct Cystic Duct

Accessory Organs of Digestion Gallbladder: Stores bile until it is released into the small intestine.

Accessory Organs of Digestion Pancreas: Produces many types of enzymes used in the small intestine to digest food.

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Surface Anatomy - Anterior View

Receives blood returning from the body Right Atrium

Returns blood to right atrium from upper parts of the body Superior Vena Cava (Precava)

Receives blood from right atrium & pumps it into the pulmonary artery. Right Ventricle

Pumps blood to the lungs. Pulmonary Artery

Receives blood from the lungs. Left Atrium

Receives blood from the left atrium & pumps it into the aorta. Left Ventricle

Pumps blood to the body. Aorta

Supply oxygen, hormones & nutrients to the tissues of the heart. Coronary Arteries

Remove carbon dioxide and wastes from the tissues of the heart. Cardiac Veins

Apex

Heart - Posterior View

Returns blood from inferior parts of the body to the right atrium. Inferior Vena Cava (Postcava)

Return blood from the lungs to the left atrium. Pulmonary Veins

Major Arteries of the Body

Aortic Arch Abdominal Aorta Brachiocephalic

Celiac Artery

External IliacInternal Iliac Femoral Arteries of the Legs

Arteries of the Head & Neck

Arteries of the Arm & Shoulder Subclavian Axillary

Major Veins of the Body

Major Veins of the Head & Neck

Major Veins of Arm & Shoulder Brachial Vein Subclavian Vein

Major Veins of the Abdomen External Iliac Internal Iliac Common Iliac Renal Inferior Vena Cava

Major Veins of the Legs Internal Iliac Vein External Iliac Common Iliac Vein

Fig. 7.11

Larynx Thymus Lung Heart

Fig. 30.9a

Fig. 30.9b

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The End