Term
| What are the layers of the scalp? |
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Definition
| Skin, connective tissue (dense, irregular, collagenous CT; distributes neurovascular supply so scalp), aponeurosis, loose connective tissue, pericranium |
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Term
| What three structures make up the aponeurosis of the scalp? |
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Definition
| the occipitalis muscle, galea aponeurotica, and frontalis muscle. |
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Term
| What layer of the scalp could pus and infection potentially spread through? What type of vasculature make this a serious risk for brain infections? |
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Definition
| Infection could potentially spread through the loose connective tissue of the scalp. Emissary veins make this a real risk for brain infection. |
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Term
| Which carotid artery supplies blood to the anterior aspect of the scalp? How? |
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Definition
| The internal carotid artery sends blood to the anterior aspect of the scalp via the opthalmic artery and out through the supratrochlear and supraorbital branches. |
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Term
| What branches of the external carotid artery supply blood to the scalp? |
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Definition
| superficial temporal, posterior auricular, and occipital arteries. |
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Term
| What nerves innervate the front portion of the scalp? |
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Definition
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Term
| What spinal nerves innervate the scalp? |
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Definition
| Greater occipital, least occipital (dorsal rami) and lesser occiptial (ventral ramus off cervical plexus). Mostly Greater Occipital N. |
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Term
| What are the main bones of the neurocranium? |
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Definition
| frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones. |
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Term
| What are the sutures on the skull? |
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Definition
| sagittal, lambdoid, coronal. There is also a landmark called the pterion where the temporal, frontal, parietal, and sphenoid bones meet. |
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