Human Tongue Model

Quick Answer: A human tongue model is an enlarged anatomical replica of the tongue, the muscular organ on the floor of the mouth. It is used to teach the parts and surface of the tongue, the muscles that move it and the nerves that serve taste, touch and movement, in biology, dental, nursing and speech therapy courses.

A Muscle with Several Nerve Supplies

The tongue is almost entirely skeletal muscle covered by mucous membrane. Its intrinsic muscles run lengthways, across and vertically inside the tongue and change its shape, for example curling the tip or flattening the blade. Four pairs of extrinsic muscles, the genioglossus, hyoglossus, styloglossus and palatoglossus, attach it to the jaw, hyoid bone, skull and soft palate and alter its position. Genioglossus pulls the tongue forward, which is why the tongue of an unconscious person lying on their back can fall back and block the airway once muscle tone is lost.

Nerve supply is a favourite examination topic, and a model helps to map it. Movement comes from the hypoglossal nerve, except for palatoglossus, which is supplied through the vagus. On the front two-thirds, general sensation travels in the lingual nerve and taste in the chorda tympani, a branch of the facial nerve. The back third, behind the V-shaped sulcus terminalis, relies on the glossopharyngeal nerve for both. The surfaces differ as well: the front carries the papillae, while the back is covered by the bumpy lymphoid tissue of the lingual tonsil.

Tongue models range from a surface-only tongue to a sectioned version showing the muscle layers. The listing does not say which form this is, so the parts shown and the scale should be checked with the order.

Care & Handling

• Dust the textured upper surface of the human tongue model with a soft brush; the raised papilla detail traps dust that a cloth only pushes deeper.
• Keep it away from heaters and direct sunlight, which can fade the painted regions.
• If the model has removable or sectioned parts, store them fitted in place so the joints do not warp.

Specifications

Applications

• Anatomy lessons on the tongue muscles and the hypoglossal nerve
• Dental and oral health courses covering the floor of the mouth and the lingual nerve
• Speech and language therapy training on how tongue position shapes consonant sounds
• Nursing lessons on airway positioning and why the tongue can obstruct the airway

Why Choose LabEquip

Speech therapy tutors and dental and nursing teachers want a tongue model that makes muscle and nerve anatomy easy to point at. This one appears in LabEquip’s biology lab products; for a surface-focused alternative, see the tongue model on base, and send questions through the contact page.

Frequently Asked Questions

Which nerve moves the tongue?

The hypoglossal nerve, the twelfth cranial nerve, supplies all the tongue muscles except palatoglossus, which is supplied through the vagus. If one hypoglossal nerve is damaged, the tongue deviates towards the damaged side when it is stuck out.

Which nerves carry taste from the tongue?

Taste from the front two-thirds travels in the chorda tympani, a branch of the facial nerve, and taste from the back third in the glossopharyngeal nerve. A small area near the epiglottis sends taste through the vagus nerve.

What is the difference between intrinsic and extrinsic tongue muscles?

Intrinsic muscles lie entirely inside the tongue and change its shape, making it longer, shorter, narrower or curled. Extrinsic muscles attach the tongue to bone or the soft palate and move it as a whole, forward, back, up or down.

What is the frenulum of the tongue?

It is the fold of mucous membrane joining the underside of the tongue to the floor of the mouth. When it is unusually short or tight, a condition called tongue-tie, it can limit tongue movement and affect feeding in babies.

Why is the tongue important in speech?

Many sounds depend on where the tongue makes contact. The tip meets the ridge behind the upper teeth for t and d, and the back of the tongue rises to the soft palate for k and g. Speech therapists use models to show these positions to trainees and clients.

Why can the tongue block the airway?

In an unconscious person lying on their back, the muscles that hold the tongue forward relax and it can drop back against the throat. Tilting the head and lifting the chin, or a jaw thrust, draws it forward again, which is why airway opening is taught before rescue breaths.

Last Updated: September 2026