Body Regions and Cavities and Terms of Orientation

The 2 major Cavities: Dorsal and Ventral cavity

1. Dorsal cavity: • consists of 2 main cavities

(1.) Cranial cavity: within the skull. It houses the brain

(2.) Vertebral canal: contains the spinal chord

Ventral Cavityconsists of thoracic cavity, and adominopelvic cavity

Thoracic cavity:

o separated from the lower abdominopelvic cavity by the diaphragm (a thin muscles)

o includes the heart and lungs

Ventral CavityAbdominopelvic cavity: o Separated into 2 parts

(1.) abdominal cavity: • includes the stomach, liver, spleen, gallbladder, kidney, and most of the small and large intestines. • Extends from the diaphragm to the top of the hip bones

(2.) pelvic cavity: includes the large intestine, urinary bladder, and the internal reproductive organs enclosed by the hip bones

Name:_____________

Date:____________

Label each area correctly, hint all are cavities accept #5 which is a muscle that separates the two cavities

Relative Position Terminology Terms that describe the location of one body part with respect to another.

Superior: means that the body part is above another part or is closer to the head Example: The Thoracic cavity is superior to the abdominopelvic cavity

Inferior: means that a body part is below another body part or is toward the feet Example: The neck is inferior to the head)

Anterior: (Ventral) means toward the front Example: the eyes are anterior to the brain)

Posterior: (Dorsal) means toward the backExample: the pharynx is posterior to the oral cavity

Sagittal plane

A lengthwise cut that divides the body into the left and right portions.

Median (midline): when the sagittal plane pass along the midline and divides the body into equal parts

The red plane is median plane and the blue is a sagittal plane

Transverse plane

A transverse plane (Also known as

horizontal) is a cut that divides the

body into inferior and superior

portions

Coronal plane

A Coronal plane is a section that divides the body into anterior and

posterior portions

Regions

• Cephalic

• Genital

• Pettelar

• Sternal

• Pectoral

• Umbilical

• Coxal

• Crural

• Tarsal

• Pedal

• Vertebral

• Dorsum

• Gluteal

• Femoral

15. Brachial

16. Cubital

17. Popliteal

18. Plantar

12

3

4

5

5

6

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Front

Back

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12

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13

14

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