Radial Nerve Palsy Wristdrop Diagram
Posted inDisease

Radial Nerve Palsy Wristdrop Diagram

Radial nerve palsy causes wrist drop (loss of extensors), sensory loss dorsum hand/thumb-index-middle. Common from humeral shaft fracture (spiral groove) or Saturday night compression.
Anatomical Course of the Musculocutaneous Nerve Diagram
Posted inMedical

Anatomical Course of the Musculocutaneous Nerve Diagram

The musculocutaneous nerve (C5-C7, lateral cord) pierces coracobrachialis, runs between biceps/brachialis, supplies coracobrachialis, biceps, brachialis (elbow flexion/supination), then becomes lateral cutaneous nerve of forearm for lateral forearm skin.
Venous Drainage of the Pelvis Diagram
Posted inMedical

Venous Drainage of the Pelvis Diagram

Pelvic venous drainage includes internal iliac veins (gluteal, obturator, vesical, uterine/vaginal, rectal plexuses), external iliac (femoral continuation), common iliac to IVC. Valveless plexuses allow retrograde spread in malignancy.
Peristaltic Contractions of the Stomach Diagram
Posted inOrgans

Peristaltic Contractions of the Stomach Diagram

Peristaltic contractions of the stomach involve coordinated circular muscle waves starting at the fundus/body, progressing toward the pylorus to mix and propel chyme. They’re regulated by enteric nervous system, vagus…
Third Layer of Plantar Muscles Diagram
Posted inMuscles

Third Layer of Plantar Muscles Diagram

Third layer of plantar muscles includes flexor hallucis brevis (to big toe), adductor hallucis (oblique/transverse heads to big toe), and flexor digiti minimi brevis (to little toe). They support toe…
Interspinales Muscle of the Back Diagram
Posted inMuscles

Interspinales Muscle of the Back Diagram

Interspinales muscles span between adjacent spinous processes (cervical/thoracic/lumbar), aid extension, stabilize vertebrae during posture/movement. Part of deep back muscles.
glomerulus Diagram
Posted inCell

Glomerulus Diagram

The glomerulus is a tuft of fenestrated capillaries inside Bowman’s capsule, forming the filtration unit of the nephron. It receives blood from the afferent arteriole, filters plasma (excluding large proteins/cells)…
Course of the Great Auricular Nerve Diagram
Posted inMedical

Course of the Great Auricular Nerve Diagram

The great auricular nerve (C2-C3 from cervical plexus) ascends behind sternocleidomastoid, emerges at Erb’s point, and supplies skin over parotid, mastoid, auricle, and angle of mandible. It’s commonly blocked for…
C spine picture Diagram
Posted inBones

C spine picture Diagram

C-spine picture shows seven cervical vertebrae: C1 atlas (no body, anterior/posterior arches), C2 axis (dens/odontoid), C3-C6 typical (bifid spinous, transverse foramina), C7 prominent spinous (vertebra prominens).
Human Heart Anatomy Diagram
Posted inOrgans

Human Heart Anatomy Diagram

The human heart anatomy diagram shows how this powerful muscle works as the body’s central pump, constantly circulating blood to keep us alive. The heart is divided into four main…
Lateral View of the Sella Turcica Diagram
Posted inBones

Lateral View of the Sella Turcica Diagram

The sella turcica in lateral view is a saddle-shaped depression in sphenoid body housing the pituitary, bounded by tuberculum sellae anteriorly, dorsum sellae posteriorly, and anterior/posterior clinoids.
Anatomical Position of the Humerus Diagram
Posted inBones

Anatomical Position of the Humerus Diagram

The Anatomical Position of the Humerus diagram places the humerus in standard anatomical position with greater tubercle lateral, capitulum anterior, and trochlea medial. It labels head, surgical/anatomical neck, tubercles, shaft,…
Infratrochlear Nerve Course Supply Diagram
Posted inMedical

Infratrochlear Nerve Course Supply Diagram

The infratrochlear nerve (terminal branch of nasociliary, V1) exits orbit below trochlea, supplies sensation to medial upper eyelid, caruncle, lacrimal sac, root of nose, and skin between eye and nose…