The Nose and Sinuses

Illustration of the surface appearance of the nose, highlighting its external anatomy.

The External Nose

Illustration showing the frontal, ethmoid, maxillary, and sphenoid sinuses in front and side views of the head.

The Paranasal Sinuses

Sagittal section of the nasal cavity highlighting the conchae on the lateral walls.

The Nasal Cavity

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Anatomy by Movement

Head & Neck

by Dr Oliver Jones

Cross-sectional diagram of a hair follicle and hair shaft, labeled with follicle structures including the medulla, cortex, cuticle, sebaceous gland, root sheaths, hair matrix, dermal papilla, hair bulb, and arrector pili muscle.
Tissue Ultrastructure

The Hair Follicle

by Pratham Dalwadi

Development of the Head and Neck

The Pharyngeal Arches

by Brijmohan Pandya