The human body an orientation part b l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 23

The Human Body: An Orientation Part B PowerPoint PPT Presentation


  • 143 Views
  • Updated On :
  • Presentation posted in: General

The Human Body: An Orientation Part B. 1. Anatomical Position. Body erect, feet slightly apart, palms facing forward, thumbs point away from body. Figure 1.7a. Directional Terms. Superior and inferior – toward and away from the head, respectively

Related searches for The Human Body: An Orientation Part B

Download Presentation

The Human Body: An Orientation Part B

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


The human body an orientation part b l.jpg

The Human Body: An Orientation

Part B

1


Anatomical position l.jpg

Anatomical Position

  • Body erect, feet slightly apart, palms facing forward, thumbs point away from body

Figure 1.7a


Directional terms l.jpg

Directional Terms

  • Superior and inferior – toward and away from the head, respectively

  • Anterior and posterior – toward the front and back of the body

  • Medial, lateral, and intermediate – toward the midline, away from the midline, and between a more medial and lateral structure


Directional terms4 l.jpg

Directional Terms

  • Proximal and distal – closer to and farther from the origin of the body

  • Superficial and deep – toward and away from the body surface


Directional terms5 l.jpg

Directional Terms

Table 1.1


Directional terms6 l.jpg

Directional Terms

Table 1.1


Regional terms anterior view l.jpg

Regional Terms: Anterior View

  • Axial – head, neck, and trunk

  • Appendicular – appendages or limbs

  • Specific regional terminology

Figure 1.7a


Regional terms posterior view l.jpg

Regional Terms: Posterior View

Figure 1.7b


Body planes l.jpg

Body Planes

  • Sagittal – divides the body into right and left parts

  • Midsagittal or medial – sagittal plane that lies on the midline

  • Frontal or coronal – divides the body into anterior and posterior parts

  • Transverse or horizontal (cross section) – divides the body into superior and inferior parts

  • Oblique section – cuts made diagonally


Anatomical variability l.jpg

Anatomical Variability

  • Humans vary slightly in both external and internal anatomy

  • Over 90% of all anatomical structures match textbook descriptions, but:

    • Nerves or blood vessels may be somewhat out of place

    • Small muscles may be missing

  • Extreme anatomical variations are seldom seen


Body planes11 l.jpg

Body Planes

Figure 1.8


Body cavities l.jpg

Body Cavities

  • Dorsal cavity protects the nervous system, and is divided into two subdivisions

    • Cranial cavity is within the skull and encases the brain

    • Vertebral cavity runs within the vertebral column and encases the spinal cord

  • Ventral cavity houses the internal organs (viscera), and is divided into two subdivisions: thoracic and abdominopelvic


Body planes13 l.jpg

Body Planes

Figure 1.9a


Body planes14 l.jpg

Body Planes

Figure 1.9b


Body cavities15 l.jpg

Body Cavities

  • Thoracic cavity is subdivided into pleural cavities, the mediastinum, and the pericardial cavity

    • Pleural cavities – each houses a lung

    • Mediastinum – contains the pericardial cavity, and surrounds the remaining thoracic organs

    • Pericardial cavity – encloses the heart


Body cavities16 l.jpg

Body Cavities

  • The abdominopelvic cavity is separated from the superior thoracic cavity by the dome-shaped diaphragm

  • It is composed of two subdivisions

    • Abdominal cavity – contains the stomach, intestines, spleen, liver, and other organs

    • Pelvic cavity – lies within the pelvis and contains the bladder, reproductive organs, and rectum


Ventral body cavity membranes l.jpg

Ventral Body Cavity Membranes

  • Parietal serosa lines internal body walls

  • Visceral serosa covers the internal organs

  • Serous fluid separates the serosae


Ventral body cavity membranes18 l.jpg

Ventral Body Cavity Membranes

Figure 1.10a


Ventral body cavity membranes19 l.jpg

Ventral Body Cavity Membranes

Figure 1.10b


Other body cavities l.jpg

Other Body Cavities

  • Oral and digestive – mouth and cavities of the digestive organs

  • Nasal –located within and posterior to the nose

  • Orbital – house the eyes

  • Middle ear – contain bones (ossicles) that transmit sound vibrations

  • Synovial – joint cavities


Abdominopelvic regions l.jpg

Abdominopelvic Regions

  • Umbilical

  • Epigastric

  • Hypogastric

  • Right and left iliac or inguinal

  • Right and left lumbar

  • Right and left hypochondriac

Figure 1.11a


Organs of the abdominopelvic regions l.jpg

Organs of the Abdominopelvic Regions

Figure 1.11b


Abdominopelvic quadrants l.jpg

Abdominopelvic Quadrants

  • Right upper

  • Left upper

  • Right lower

  • Left lower

Figure 1.12


  • Login