Biceps brachii vs Diaphragm

Property	Biceps brachii	Diaphragm
Latin Name	Musculus biceps brachii	Musculus diaphragma
Type	Muscle	Muscle
Body System	Muscular	Muscular
Body Region	Upper Arm	Thorax
Function	Primary supinator of the forearm and powerful flexor of the elbow. Also assists in shoulder flexion. The long head assists in shoulder joint stabilization.	The primary muscle of respiration. Contraction flattens the dome-shaped muscle, increasing thoracic volume and creating negative pressure to draw air into the lungs during inspiration.
Clinical Significance	Biceps tendon ruptures cause a visible bulge (Popeye deformity). Bicipital tendinitis causes anterior shoulder pain. The biceps reflex tests the C5-C6 nerve roots.	Diaphragmatic hernias allow abdominal organs to enter the thoracic cavity. Phrenic nerve paralysis causes diaphragmatic elevation. Hiccups result from involuntary diaphragmatic spasms.
FMA ID	37670	13295

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Full structure pages

Biceps brachii

Musculus biceps brachii

A two-headed muscle of the anterior compartment of the upper arm, the biceps brachii is the primary supinator of the forearm and a powerful flexor of the elbow, also assisting in flexion of the shoulder. …

Muscular Upper Arm

Diaphragm

Musculus diaphragma

The principal muscle of respiration, the diaphragm is a musculotendinous dome that separates the thoracic and abdominal cavities. When it contracts, the dome flattens, increasing thoracic volume and generating the negative pressure that draws air …

Muscular Thorax