7.19 The Skull: Sutures and Sinuses

What are the names of the four sinuses in the skull

- Ethmoid sinus - Frontal sinus - Maxillary sinus - Sphenoid sinus

What are the names of the two bones joined by the coronal suture?

- Frontal bone - Parietal bones

What are the names of the four major sutures found in the skull?

- Lambdoid suture - Coronal suture - Sagittal suture - Squamous suture

What are the names of the two bones joined by the lambdoid suture?

- Occipital bone - Parietal bones

What are the names of the two bones joined by the squamous suture?

- Temporal bone - Parietal bones

What are the three major functions of the sinuses?

- They lessen the weight of the bone - The mucous membrane that lines them produces mucus that moistens and cleans the air in the sinus - They serve as resonating chambers in speech production

What are sutures?

Immovable joints that connect the bones of the skull

What bones does the sagittal suture join?

The two parietal bones