#3 [ANATOMY&PHYSIOLOGY] BODY PLANES & SECTIONS - MAINTAINING LIFE

Sections

BODY PLANES AND SECTIONS

These are the CUTS ALONG IMAGINARY LINES KNOWN AS PLANES.

Planes

BODY PLANES AND SECTIONS

It is the IMAGINARY LINE THAT CUTS INTO SECTIONS

Median

BODY PLANES AND SECTIONS

DIVIDES THE BODY/ORGAN INTO LEFT AND RIGHT

• “SAGITTAL SECTION”

• Equal left and right parts

Frontal

BODY PLANES AND SECTIONS

DIVIDES THE BODY'/ORGAN INTO ANTERIOR AND POSTERIOR PARTS (Front & back regions).

• “CORONAL SECTION”

Transverse

BODY PLANES AND SECTIONS

DIVIDES THE BODY/ORGAN INTO SUPERIOR AND INFERIOR PARTS (Half of the body/aswang)

• “CROSS SECTION”

Cranial Cavity

DORSAL CAVITY

• HOUSES THE BRAIN

• PROTECTED BY THE SKULL

Spinal Cavity

DORSAL CAVITY

• “HOUSES THE SPINAL CORD”

• PROTECTED BY THE VETERBRAE

Thoracic Cavity

VENTRAL BODY CAVITY

CAVITY SUPERIOR TO THE DIAPHRAGM

• HOUSES HEART, LUNGS, ETC.

• Mediastinum, the central region, houses heart, trachia, etc.

• PROTECTED BY RIB CAGE

Abdominopelvic Cavity

THORACIC CAVITY

CAVITY INFERIOR TO THE DIAPHRAGM

• SUPERIOR ABDOMINAL CAVITY: stomach, liver, etc. PROTECTED BY TRUNK MUSCLES

• INFERIOR PELVIC CAVITY: reproductive organs, bladder, and rectum. PROTECTED BY BONY PELVIS

• NO PHYSICAL STRUCTUTE SEPARATES ABDOMINAL FROM PELVIC ACTIVITIES.

Body Cavities

These PROVIDE VARYING DEGREES OF PROTECTION TO ORGANS WITHIN THEM.

• (2) : Dorsal & ventral

Physiology

It is the STUDY OF HOW THE BODY AND ITS PART WORK OR FUNCTION.

• STRUCTURE DETERMINES WHAT FUNCTIONS CAN OCCUR.

Necessary Life Function

1. Maintaining BOUNDARIES

2. MOVEMENT

3. RESPONSIVENESS (irritability)

4. DIGESTION

5. METABOLISM

6. EXCRETION

7. REPRODUCTION

8. GROWTH

Survival Needs

1. NUTRIENTS

2. OXYGEN

3. WATER

4. NORMAL BODY TEMP.

5. ATMOSPHERIC PRESSURE

Ventral body cavity

BODY CAVITY

HAS (2) SUBDIVISIONS SEPARATED BY THE DIAPHRAGM:

1. THORACIC CAVITY

2. ABDOMINAL CAVITY

Superior Abdominal Cavity

ABDOMINOPELVIC CAVITY

CONTAINS THE STOMACH, LIVER, AND OTHER ORGANS

• Protected ONLY BY TRUNK MUSCLES.

Inferior Pelvic Cavity

ABDOMINOPELVIC CAVITY

CONTAINS REPRODUCTIVE ORGANS, BLADDER, AND RECTUM.

• PROTECTED SOMEWHAT BY BONY PELVIS

• NO PHYSICAL STRUCTURE SEPARATES ABDOMINAL FROM PELVIC CAVITIES