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Human Anatomy Anatomical Terms.

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Presentation on theme: "Human Anatomy Anatomical Terms."— Presentation transcript:

1 Human Anatomy Anatomical Terms

2 Definitions Anatomy – Deals with the structure of body parts – their forms and relationships. Physiology – Deals with the functions of body parts – what they do and how they do it. Dissection – The careful cutting apart of body parts to see their relationships.

3 Anatomical Terminology
Body Positions Regional Names Directional Terms Planes and Sections Body Cavities

4 Body Positions Anatomical Position Prone – body lying face down.
The subject stands erect facing the observer, with the head level and the eyes facing forward. The feet are flat on the floor and directed forward, and the arms are at the sides with the palms turned forward. Prone – body lying face down. Supine – body lying face up.

5 Anatomical Position

6 Regional Names Regions can be identified externally.
Principal regions: Head (cephalic) Neck (cervical) Trunk Upper limb Lower limb


8 Directional Terms Superior (cephalic or cranial) and inferior (caudal). Anterior (ventral) and posterior (dorsal). Medial and lateral.

9 Directional Terms Intermediate Ipsilateral and contralateral.
Proximal and distal. Superficial and deep.

10 Directional Terms

11 Planes and Sections Sagittal Plane – vertical plane – divides body into right and left. Midsaggital or median plane – equal parts Parasaggital plane – unequal parts

12 Planes and Sections Frontal or coronal – divides body into anterior and posterior parts Transverse plane – divides body into superior and inferior parts Oblique plane – angle Section – one flat surface or a 3-D structure

13 Planes

14 Planes

15 Body Cavities Spaces within the body that help protect, separate, and support internal organs. Two major cavities are the dorsal and ventral body cavities.

16 Dorsal Body Cavity Located near the dorsal (posterior) surface of the body. Subdividions Cranial cavity Vertebral (spinal) canal Meninges

17 Ventral Body Cavity Located near the ventral (anterior) aspect of the body. Subdivisions Thoracic cavity Abdominopelvic cavity Diaphragm Viscera

18 Dorsal and Ventral Cavities

19 Thoracic Cavity Subdivisions Pericardial Cavity Pleural cavities


21 Abdominopelvic cavity
Subdivisions Abdominal Cavity Pelvic Cavity


23 Thoracic and Abdominal Cavity Membranes
Serous membrane Pleura Pericardium Peritoneum

24 Abdominopelvic Regions and Quadrants
The nine-region designation is used for anatomical studies, whereas the quadrant designation is used to locate the site of pain, tumor, or some other abnormality.

25 Abdominopelvic Regions
Right Hypochondriac Region Epigastric Region Left Hypochondriac Region Right Lumbar Region Umbilical Region Left Lumbar Region Right Inguinal (Iliac) Region Hypogastric (Pubic Region) Left Inguinal (Iliac) Region Subcostal line, transtubercular line, midclavicular lines

26 Abdominopelvic Quadrants
Right Upper Quadrant (RUQ) Left Upper Quadrant (LUQ) Right Lower Quadrant (RLQ) Left Lower Quadrant (LLQ) Horizontal lines passes through umbilicus


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