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Anatomical Organization From Reference Systems to Body Syste
Anatomical Organization From Reference Systems to Body Systems key terms
70
Medical
Undergraduate 1
08/13/2026

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Term
Abdominal Cavity
Definition
Houses digestive organs.
Term
Abduction
Definition
Movement away from the midline
Term
Adduction
Definition
Movement toward the midline.
Term
Adipose Tissue
Definition
Fat-storing connective tissue.
Term
Anatomical Position
Definition
Standard body position used as a reference point for directional terms.
Term
Anterior (Ventral)
Definition
Toward the front of the body.
Term
Areolar Tissue
Definition
Loose connective tissue around organs.
Term
Blood
Definition
Fluid connective tissue transporting materials.
Term
Body Planes
Definition
Imaginary lines used to divide the body for anatomical study.
Term
Cancellous Bone
Definition
Spongy bone containing marrow.
Term
Cardiac Muscle
Definition
Involuntary muscle of the heart.
Term
Cardiovascular System
Definition
Transports blood and nutrients.
Term
Caudal
Definition
Toward the tail or lower body.
Term
Cephalic
Definition

 

Toward the head.
Term
Circumduction
Definition
Circular movement combining all angular motions.
Term
Compact Bone
Definition
Dense bone providing strength.
Term
Connective Tissue
Definition
Supports, binds, and protects.
Term
Coronal Plane
Definition
Divides body into front (anterior) and back (posterior) parts.
Term
Cranial Cavity
Definition
Houses the brain.
Term
Deep
Definition

 

Further from the body surface.
Term
Dense Irregular Tissue
Definition
Found in skin and organ capsules.
Term
Dense Regular Tissue
Definition
Forms tendons and ligaments.
Term
Depression
Definition
Lowering a body part.
Term
Distal
Definition
Farther from the point of attachment.
Term
Dorsiflexion
Definition
Bending foot upward.
Term
Elastic Cartilage
Definition
Flexible cartilage in ear and epiglottis.
Term
Elevation
Definition
Lifting a body part.
Term
Epithelial Tissue
Definition
Covers surfaces and lines cavities.
Term
Extension
Definition
Increasing the angle between bones.
Term
Fibrocartilage
Definition

 

Durable cartilage in spine and joints.
Term
Flexion
Definition
Decreasing the angle between bones.
Term
Glial Cell
Definition
Supports neuron function.
Term
Hyaline Cartilage
Definition

 

Smooth cartilage in joints and respiratory tract.
Term
Hyperextension
Definition
Extension beyond normal range.
Term
Inferior
Definition
Away from the head or toward the lower part of the body.
Term
Lateral
Definition
Away from the midline of the body
Term
Lymph
Definition
Immune tissue transporting white blood cells.
Term
Lymphatic System
Definition
Defends against infection and manages fluid.
Term
Medial
Definition
Toward the midline of the body.
Term
Midsagittal Plane
Definition
Divides body into equal left and right halves.
Term
Muscle Tissue
Definition
Enables movement.
Term
Myelin Sheath
Definition
Insulates axons to speed transmission.
Term
Nervous System
Definition
Coordinates body functions and responses.
Term
Nervous Tissue
Definition
Controls communication through electrical signals.
Term
Neuron
Definition
Nerve cell that transmits impulses.
Term
Oblique Plane
Definition

 

Divides body at an angle between horizontal and vertical planes.
Term
Parasagittal Plane
Definition
Divides body into unequal left and right parts.
Term
Pelvic Cavity
Definition
Houses reproductive and urinary organs.
Term
Pericardial Cavity
Definition
Surrounds the heart.
Term
Plantar Flexio
Definition
Bending foot downward.
Term
Pleural Cavities
Definition

 

Surround the lungs.
Term
Posterior (Dorsal)
Definition
Toward the back of the body.
Term
Pronation
Definition
Turning palm downward or backward.
Term
Proximal
Definition
Closer to the point of attachment.
Term
Pseudostratified Epithelium
Definition
Appears multilayered, lines respiratory tract.
Term
Respiratory System
Definition
Performs gas exchange.
Term
Reticular Tissue
Definition
Supportive framework for organs.
Term
Rotation
Definition
Turning around the axis.
Term
Sagittal Plane
Definition
Divides body into left and right parts.
Term
Simple Epithelium
Definition
Single layer, aids absorption and filtration.
Term
Skeletal Muscle
Definition
Voluntary muscle attached to bones.
Term
Smooth Muscle
Definition

 

Involuntary muscle in organs.
Term
Spinal Cavity
Definition
Encloses the spinal cord.
Term
Stratified Epithelium
Definition
Multiple layers, provides protection.
Term
Superficial
Definition
Near the body surface.
Term
Superior
Definition
Toward the head or upper part of the body.
Term
Supination
Definition
Turning palm upward or forward.
Term
Thoracic Cavity
Definition
Houses heart and lungs.
Term
Transitional Epithelium
Definition
Stretches; found in bladder.
Term
Transverse Plane
Definition
Divides body into upper (superior) and lower (inferior) parts.
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