Intro to the Human Body – Directional Terms, Planes, Quadrants, and Regions
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Transcript of Intro to the Human Body – Directional Terms, Planes, Quadrants, and Regions
Intro to the Human Body – Directional Terms, Planes, Quadrants, and Regions
HST I
Correct Anatomical PositionStanding
Feet together
Arms at sides
Head and eyes forward
Palms facing forward
Used when describing anatomical positions and locations
Directional Terms
Used to describe the anatomical position of a body part in relation to another
Directional Terms Superior or cranial (cranial used with animals)
toward the head end of the body; upper; above(example, the head is superior to the neck).
Inferior or caudal (caudal used with animals)away from the head; lower; toward the tailbone (example, the mouth is inferior to the nose).
Anterior or ventral (ventral used with animals)front (example, the teeth are anterior to the tongue).
Posterior or dorsal (dorsal used with animals)back (example, the shoulder blades are posterior to the ribs).
Medial toward the midline of the body (example, the big toe is medial to the little toe).
Directional Terms Lateral
away from the midline of the body; toward the sides (example, the ears are lateral to the cheekbone).
Proximal toward or nearest the trunk or the point of origin of a part (example, the elbow is proximal to the wrist)
Distal away from or farthest from the trunk or the point or origin of a part (example, the fingers are distal to the hand)
Internal within the body
Externaloutside the body
Directional TermsFlexion Decreasing the angle between two
bonesExtension Increasing the angle between two
bonesAfferent Carrying toward a centerEfferent Carrying away from a centerAdduction Moving toward the midlineAbduction Moving away from the midline
Eversion Turning a body part outwardInversion Turning a body part inwardPronation Turning a body part downward
(pointing toe)Supination Turning a body part upward
(shrugging shoulders)
Deep Away from the body surface, more internal
Superficial Toward or at the body surfacePlantar Toward the sole of the footPalmar Toward the palm of the hand
Directional TermsUsually written with the opposing direction. For example:
Superior / Inferior
Lateral / Medial
Proximal / Distal
Practice:◦The wrist is ___________ to the hand.
◦The breastbone is ________ to the spine.
◦The brain is _______ to the spinal cord.
◦The lungs are ______ to the stomach.
◦The thumb is ___________ to the fingers.
The ears are __________ to the nose.
◦The knee is __________ to the ankle
Answers:◦The wrist is _____proximal_______ to the
hand. ◦The breastbone is __ventral______ to the
spine. ◦The brain is __superior_____ to the spinal
cord. ◦The lungs are _superior______ to the
stomach. ◦The thumb is __lateral_________ to the
fingers. ◦The ears are __lateral___________ to the nose. ◦The knee is ____proximal_______ to the ankle.
Abdominal QuadrantsDivides the abdomen into 4 quadrants
by midsagittal and a transverse planesIntersection occurs at the belly button
(navel or umbilicus)Used when describing pain or injury to
a patient OR for locating internal organs
Labeled as ◦ RUQ – right upper quadrant◦ RLQ – right lower quadrant◦ LUQ – left upper quadrant◦ LLQ – left lower quadrant
Abdominal Quadrants
Remember – right and left refers to the PATIENT’s right and left NOT YOURS
RUQ:LIVERGALLBLADDER DUODENUMRIGHT KIDNEY AND
ADRENALLARGE INTESTINE
LUQ:STOMACHSPLEENPANCREASLEFT KIDNEY AND
ADRENALLARGE INTESTINE
RLQ:LARGE INTESTINESMALL INTESTINEAPPENDIXRIGHT OVARY AND FALLOPIAN TUBE (females)RIGHT URETER
LLQ:SMALL INTESTINELARGE INTESTINELEFT OVARY AND FALLOPIAN TUBE (females)LEFT URETER
Abdominopelvic (or Abdominal) Regions
9 total regions◦Remember – right and left refers to the PATIENT’s right and left NOT YOURS
Right and left hypochondriacRight and left lumbarRight and left iliacEpigastricUmbilicalHypogastric
Abdominopelvic (or Abdominal) Regions
Review:
Body Planes4 anatomical planes that pass through the body when in anatomical position◦Sagittal = any left and right separation
◦Midsagittal = equal right and left separation (down the middle or midline of the body)
◦Transverse(Horizontal) = top and bottom (superior and inferior)
◦Coronal (Frontal) = front and back (anterior and posterior)
◦Oblique = at an angle between horizontal and vertical planes
Body Planes
Body Cavities
1. Cranial Cavity2. Spinal Cavity
(looking through body at spine)
3. Mediastinum4. Pleural Cavity5. Pericardial
Cavity6. Diaphragm7. Abdominal
Cavity8. Pelvic Cavity 9. Abdominopelvic
Cavity10. Anterior
(Ventral Cavity)
Body Cavities
1. Cranial cavity - brain2. (1 and 3) Posterior
(Dorsal) Cavity 3. Spinal cavity –
spinal cord4. Thoracic cavity –
heart, lungs, esophagus, trachea
5. Diaphragm6. Abdominal cavity –
stomach, spleen, liver, gallbladder, small intestine and most of large intestine
7. Pelvic cavity – part of large intestine, urinary bladder, reproductive organs
(4- 7) Anterior (Ventral) Cavity
Medical Abbreviations:(A)@ atA&P Anterior and
Posterior ORAnatomy and
Physiologyaa of eachabol abdomen/abdominalab partial abortionac before mealsADL activities of daily
living
adm admissionamb ambulateamt amountAIDS Acquired Immune
Deficiency Syndrome
AD right earAS left earASA aspirinAU both ears
AP apical pulseAMA American Medical
AssociationANA American Nurses
Associationapproxapproximately
aq or aqua aqueousASAP as soon as possible
av averageAx axillary