Often the midbrains, pons and medulla are referred together as brainstem. The telencephalon comprises of three elements which are the cortex, limbic system and the basal ganglia whilst the Diencephalon consists of the thalamus and hypothalamus. THE FOREBRAIN THE CEREBRAL CORTEX The cerebral cortex is a thin mantle of gray matter covering the surface of each cerebral hemisphere. The most notable features of the telencephalon are the two large and roughly symmetrical hemispheres’ which are in fact separate functional systems interconnected by major fibre pathways called the cerebral commissures. The principal commissures is the corpus callosum which according to Nearve (2008) literally means “hard body” and this wrist –thick bundle of fibres connects the corresponding regions of
This flattened part of the skull and the depressed region above the zygomatic arch constitute the temporal fossa which in life is occupied by the temporalis muscle. 1 6. ANS -B: The middle meningeal artery and accessory meningeal artery are branches of the max illary artery that enter the cranial cavity through foramen spinosum and foramen ovale. 1 7. ANS -B: The buccal branch of the facial nerve is the motor fo r the buccinator muscle.
- The occipital lobe. e) What lobe would process words that we speak? - The frontal lobe. 4. The brain and spinal cord comprise the __central__ nervous system.
What are the components of the ANS (long) neural reflexes? The components of the ANS (long) neural reflexes include a CNS control center in the spinal cord and the brain. b. What is the stimulus for ANS regulation? Distention for many involuntary digestive movements.
The limbic system regulates body temperature, blood pressure, blood sugar level, and other housekeeping activites. The limbic system contains the Hippocampus, the amygdala and the hypothalamus. Some researchers of memory focus their studies on the limbic system. Memory function is partly organized by the hippocampus which collects and relays memory information to other layers of the brain. Memory-impairing conditions like Alzheimer’s
When I first saw the brain the first thing I noticed was the deep longitudinal fissure that divided the cerebrum in two halves: the left hemisphere and the right hemispheres. Also the surface of the brain was covered with large folds of tissue called gyri. The grooves between the gyri are sulci. The small rounded structure at the back of the brain, I noticed, was the cerebellum. Later, when I turned the brain over, the most prominent structure visible was the optical chiasma, where two optic nerves cross over each other.
____________________________________________________________ ______________________________________ It forms a central wedge that articulates 9. Why can the sphenoid bone be called the keystone of the cranial floor? _________________________________________ with all other cranial bones. ____________________________________________________________ ______________________________________ The Vertebral Column 10. The distinguishing characteristics of the vertebrae composing the vertebral column are noted below.
What is the brain? It is the portion of the central nervous system that is located within the skull. It functions as a primary receiver, organizer, and distributor of information for the body. It has a right half and a left half, each of which is called a hemisphere. A good analogy for the brain is a super computer.
The brain is the part of the central nervous system situated within the skull. Its functions
The frontal lobe regulates movement and handles language production. The parietal lobe deals with sensations. These two halves communicate by means of a bundle of axons Importance in the Brain 2 called, the corpus callous, and each side of the brain controls the opposite side of the body. See, two is better than one. The largest and most important section or Lobe is the Frontal which involves voluntary movement, thinking, personality, and intentionality or purpose.