HKIN 191 Lab Midterm: The Brain and Spinal Cord with Verified Solutions

HKIN 191 Lab Midterm: The Brain and Spinal Cord with Verified Solutions Major Divisions of the Brain - Answer️️ -Brain stem, cerebellum, cerebrum, diencephalon. Divisions of the Brain Stem - Answer️️ -Medulla, pons, midbrain. Function of the Brain Stem - Answer️️ -To relay sensory input up and motor output down. Cerebellum - Answer️️ -Compares intended movements with actual to attempt to execute coordinated, skillful movements. Divisions of the Diencephalon - Answer️️ -Thalamus, hypothalamus, epithalamus. Thalamus - Answer️️ -Relays almost all of the sensory input to cerebral cortex. Hypothalamus - Answer️️ -Essential for endocrine system. Epithalamus - Answer️️ -Pineal gland secretes melatonin. Cerebrum - Answer️️ --Motor cortex controls movement. -Sensory cortex percieves sensations. -Center for memory, personality, and intelligence. Protective Coverings and Spaces of the Brain (Cranial Meninges) - Answer️️ -Dura mater, subdural space, arachnoid mater, subarachnoid space, pia mater. Dura Mater - Answer️️ --Outer covering. ©SOPHIABENNETT EXAM SOLUTIONS_2024/2025 Tuesday, September 3, 2024 10:30 AM Page | 2 -Dense connective tissue. -Strong. Subdural Space - Answer️️ -Contains interstitial fluid. Arachnoid Mater - Answer️️ --Middle layer. -"Spider web" extensions. Subarachnoid Space - Answer️️ -Contains CSF. Pia Mater - Answer️️ --Inner layer. -Directly adheres to brain. Ventricles of the Brain - Answer️️ -Lateral ventricles, third ventricle, fourth ventricle. Septum Pellucidum - Answer️️ -Separates lateral ventricles. Choroid Plexus - Answer️️ --Produces CSF. -Networks of blood capillaries in the walls of the ventricles. Flow of CSF - Answer️️ -Choroid plexus - Lateral ventricles - Third ventricle - Aqueduct of the midbrain - Fourth ventricle. Divisions of the Cerebrum - Answer️️ -Cerebral hemispheres, cerebral lobes, longitudinal fissure, central sulcus, postcentral gyrus, precentral gyru