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

PremolarsMolars

- Broad crowns- grinding

Mouth

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

PharynxCommon passageway for food and air.

Pharynx

Stomach

Storage of food and digestion of protein.

Stomach

Small IntestineMajority of digestion and absorption occurs here.

Large Intestine - Sections

1. Cecum

2. Ascending Colon

3. Transverse Colon

4. Descending Colon

5. Sigmoid Colon

6. Rectum7. Anus

Accessory Organs of Digestion

Liver: Produces bile to aidin the digestion of lipids.

Gall Bladder and Pancreas

Pancreas

DuodenumMain pancreatic duct

Common Bile Duct

Cystic Duct

Accessory Organs of Digestion

Gallbladder: Stores bile untilit is released into the smallintestine.

Accessory Organs of Digestion

Pancreas: Produces many typesof enzymes used in the small intestine to digest food.

Fig. 31.19

Fig. 31.21

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 Iliac Internal 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

SubclavianVein

Major Veins of the Abdomen

External IliacExternal Iliac

Internal IliacInternal IliacCommon IliacCommon Iliac

Renal RenalInferior Vena Cava

Inferior Vena Cava

Major Veins of the Legs

Internal Iliac VeinExternal Iliac

Common Iliac Vein

Fig. 7.11

LarynxThymus

LungHeart

Fig. 30.9a

Fig. 30.9b

Fig. 30.12

Fig. 30.14

The End