Intro to Anatomy and Physiology 1.4

The stimulus produces a response that reinforces the stimulus

Ex: Blood clots and Labor

Positive Feedback

Homeostatic Regulation

Figure 1-5

Occurs when the body cannot maintain homeostasis

Disease

Anatomical Position Hands at sides Palms Facing Forward Feet together Supine—lie down in anatomical position Prone—lie with face down in anatomical

position

Anatomical Landmarks

Cranium—Skull Axilla—Armpit Brachium—Arm Carpus—Wrist Pollex—Thumb Digits—Fingers/Toes Thorax—Chest Cervical—Neck Dorsal—Back Gluteus—Buttock Planta--Foot

Anatomical Regions

The Language of Anatomy

Figure 1-6(a)

The Language of Anatomy

Figure 1-6(b)

Anterior—Front Ventral—belly side Posterior—Back Dorsal—Back Cranial—Head Superior—Above Caudal—Tail Inferior—Below Medial—Towards midline

Anatomical Directions

Lateral—Away from midline Proximal—Toward attached base Distal—Away from base Superficial—Near body surface Deep—Away from body surface

Anatomical Directions cont…

The Language of Anatomy

Figure 1-8

Transverse Plane—divides into superior and inferior

AKA: Cross section Frontal Plane—divides into

anterior/posterior AKA: Coronal plane Sagittal Plane—divides into left and right Midsagittal—directly down midline

Planes and Sections

The Language of Anatomy

Figure 1-9