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PTY2042
Week 4
| Question | Answer |
|---|---|
| Brainstem - parts | Medulla oblongata, pons, midbrain |
| Medulla oblongata | Starts at pons, ends at the beginning of the spinal cord (foramen magnum) |
| Cerebral peduncles | anterior to midbrain |
| Corpora quadrigemina | 4 bodies posterior (superior and inferior colliculi) |
| What do the colliculi form? | Tectum (roof of midbrain) |
| Cerebellum | 2 lobes, little brain, loads of connections with the brain stem, important for motor control, co-ordination, balance, muscle tone |
| Midbrain | Contains lots of nuclei (collection of cell bodies) important for heart rate, blood pressure, respiration and level of consciousness, wakefulness and arousal |
| Diencephalon | Thalamus, hypothalamus and pineal gland |
| Thalamus | Paired, joined in the middle (interthalamic adhesion). gateway to the cerebral hemisphere, relays information important for sleep, wakefulness, co-ordination of info, links to the basal ganglia, cerebellum |
| Where does the pineal gland sit | Above the colliculi |
| 2 main sulcus that separate the lobes | central sulcus, lateral sulcus |
| developing embryo layers | ectoderm, mesoderm, endoderm |
| week 3 development | dorsal ectoderm zips up hollow tube that becomes the spinal cord and brain stem |
| Spinobifida | |
| Anacephali | |
| Neural tube swells initially into 3 | Forebrain, midbrain, hindbrain (late 4th week) |
| 3 enlargements become 5 by week | Week 5. Cerebrum, diencephalon, midbrain, prons/cerebeillum, medulla oblongata |
| cerebrum is divided into two halves by the | longitudinal fissure |
| Frontal lobe functions | executive decisions, cognitive, higher function, primary motor cortex, over the orbits to the central sulcus, broca's area |
| Parietal lobe functions | posterior to the central sulcus, primary somatosensory cortex, integration of senses from across the body, sematic language (meaning), grammer and integrating information relating to transmitting information in language centres |
| Temporal lobe functions | Inferior to the lateral sulcus, integrates both auditory and auditory visual information, important with language integration, wernicke's area |
| Occipital lobe functions | integration of visual information, harder to distinguish |
| Insula cortex | not immefiately visible, area of grey matter enveloped bu the parietal and temporal lobe when looking coronally, special sensory integration centre (taste, integration of balance, integration of senses coming in from our organs) |
Created by:
Physiotherapy