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Full Cranial Nerve Anatomy
Full Cranial Nerve Anatomy **Description:** An overview of the 12 cranial nerves that emerge directly from the brain, responsible for various sensory and motor functions. ### **Key Components:** 1. **Olfactory Nerve (CN I)**: - Responsible for the sense of smell. 2. **Optic Nerve (CN II)**: - Carries visual information from the retina to the brain. 3. **Oculomotor Nerve (CN III)**: - Controls most eye movements, pupil constriction, and eyelid elevation. 4. **Trochlear Nerve (CN IV)**: - Controls the superior oblique muscle, which helps move the eye. 5. **Trigeminal Nerve (CN V)**: - Provides sensation to the face and controls muscles for chewing. 6. **Abducens Nerve (CN VI)**: - Controls the lateral rectus muscle, allowing eye abduction. 7. **Facial Nerve (CN VII)
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Estabilização articular
A abdução do braço é um movimento essencial para a funcionalidade dos membros superiores, e dois músculos-chave desempenham papéis importantes: o deltóide e o subescapular.DeltóideO músculo deltóide, com sua forma triangular, é dividido em três porções:Porção anterior: auxilia na flexão e rotação medial do braço.Porção média: principal responsável pela abdução, levantando o braço lateralmente.Porção posterior: contribui para extensão e rotação lateral.Durante a abdução, a porção média se ativa fortemente após os primeiros 15º do movimento (iniciados pelo supraespinhal). Sua força aumenta progressivamente à medida que o braço se eleva.SubescapularParte do manguito rotador, o subescapular é um estabilizador fundamental na abdução. Ele:Mantém a cabeça do úmero centrada na cavidade glenoidal
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**Full Hand Cells Anatomy**
**Full Hand Cells Anatomy** The human hand is made up of various specialized cells that work together to enable movement, sensation, and dexterity. ### Key Cell Types: - **Epithelial Cells**: Form the outer layer of the skin, providing protection and sensation. - **Muscle Cells**: Specialized muscle fibers (skeletal muscle cells) control hand movement. - **Nerve Cells (Neurons)**: Transmit sensory information (touch, temperature, pain) to the brain and motor signals for movement. - **Bone Cells (Osteocytes)**: Maintain bone structure and health in the hand's bones (e.g., phalanges, metacarpals, carpals). - **Blood Cells**: Red blood cells carry oxygen, white blood cells help fight infection, and platelets assist in clotting. - **Fat Cells (Adipocytes)**: Store energy and provide cushioni
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Comment on répare le ligament croisé antérieur après une rupture ?
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