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The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and spinal cord. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all parts of the bodies of bilaterally symmetric and triploblastic animals—that is, all multicellular animals except sponges and diploblasts. It is a structure composed of nervous tissue positioned along the rostral to caudal axis of the body and may have an enlarged section at the rostral end which is a brain. Only arthropods, cephalopods and vertebrates have a true brain.
Melancholia or melancholy is a concept found throughout ancient, medieval and premodern medicine in Europe that describes a condition characterized by markedly depressed mood, bodily complaints, and sometimes hallucinations and delusions.
A nerve is an enclosed, cable-like bundle of nerve fibers in the peripheral nervous system.
The optic nerve, also known as the second cranial nerve, cranial nerve II, or simply CN II, is a paired cranial nerve that transmits visual information from the retina to the brain. In humans, the optic nerve is derived from optic stalks during the seventh week of development and is composed of retinal ganglion cell axons and glial cells; it extends from the optic disc to the optic chiasma and continues as the optic tract to the lateral geniculate nucleus, pretectal nuclei, and superior colliculus.
The facial nerve, also known as the seventh cranial nerve, cranial nerve VII, or simply CN VII, is a cranial nerve that emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue. The nerve typically travels from the pons through the facial canal in the temporal bone and exits the skull at the stylomastoid foramen. It arises from the brainstem from an area posterior to the cranial nerve VI and anterior to cranial nerve VIII.
The brachial plexus is a network of nerves formed by the anterior rami of the lower four cervical nerves and first thoracic nerve. This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit. It supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.
"To Autumn" is a poem by English Romantic poet John Keats. The work was composed on 19 September 1819 and published in 1820 in a volume of Keats's poetry that included Lamia and The Eve of St. Agnes. "To Autumn" is the final work in a group of poems known as Keats's "1819 odes". Although personal problems left him little time to devote to poetry in 1819, he composed "To Autumn" after a walk near Winchester one autumnal evening. The work marks the end of his poetic career, as he needed to earn money and could no longer devote himself to the lifestyle of a poet. A little over a year after the publication of "To Autumn", Keats died in Rome.
The accessory nerve, also known as the eleventh cranial nerve, cranial nerve XI, or simply CN XI, is a cranial nerve that supplies the sternocleidomastoid and trapezius muscles. It is classified as the eleventh of twelve pairs of cranial nerves because part of it was formerly believed to originate in the brain. The sternocleidomastoid muscle tilts and rotates the head, whereas the trapezius muscle, connecting to the scapula, acts to shrug the shoulder.
Neurophysiology is a branch of the physiology and neuroscience that studies the measurement and evaluation of nervous system function rather than nervous system architecture. The word originates from the Greek word νεῦρον meaning "nerve" and physiology meaning knowledge about the function of living systems. This area aids in the diagnosis and monitoring of neurological diseases. Historically, it has been dominated by electrophysiology—the electrical recording of neural activity ranging from the molar to the cellular, such as patch clamp, voltage clamp, extracellular single-unit recording and recording of local field potentials. However, since the neurone is an electrochemical machine, it is difficult to isolate electrical events from the metabolic and molecular processes that cause them. Thus, neurophysiologists currently utilise tools from chemistry, physics, and molecular biology to examine brain activity.
Ivan Vaughan was a boyhood friend of John Lennon and later a schoolmate of Paul McCartney at the Liverpool Institute, both commencing school there in September 1953. He was born in Liverpool on the same day as McCartney. He played tea-chest bass part-time in Lennon's first band, The Quarrymen, and was responsible for introducing Lennon to McCartney at a community event on 6 July 1957, where The Quarrymen were performing. McCartney impressed Lennon, who invited him to join the band, which he did a week later. This led to the formation of Lennon and McCartney's songwriting partnership and, later, of The Beatles.
The coracobrachialis muscle is the smallest of the three muscles that attach to the coracoid process of the scapula. It is situated at the upper and medial part of the arm.
In human anatomy, the sacral plexus is a nerve plexus which provides motor and sensory nerves for the posterior thigh, most of the lower leg and foot, and part of the pelvis. It is part of the lumbosacral plexus and emerges from the lumbar vertebrae and sacral vertebrae (L4-L3. A sacral plexopathy is a disorder affecting the nerves of the sacral plexus, usually caused by trauma, nerve compression, vascular disease, or infection. Symptoms may include pain, loss of motor control, and sensory deficits.
Foot drop is a gait abnormality in which the dropping of the forefoot happens due to weakness, irritation or damage to the deep fibular nerve, including the sciatic nerve, or paralysis of the muscles in the anterior portion of the lower leg. It is usually a symptom of a greater problem, not a disease in itself. Foot drop is characterized by inability or impaired ability to raise the toes or raise the foot from the ankle (dorsiflexion). Foot drop may be temporary or permanent, depending on the extent of muscle weakness or paralysis and it can occur in one or both feet. In walking, the raised leg is slightly bent at the knee to prevent the foot from dragging along the ground.
The posterior ethmoidal nerve is a nerve of the orbit around the eye. It is a branch of the nasociliary nerve from the ophthalmic nerve (CN V1). It supplies sensation to the sphenoid sinus, the ethmoid sinus, and part of the dura mater in the anterior cranial fossa.
The zygomatic branches of the facial nerve (malar branches) are nerves of the face. They run across the zygomatic bone to the lateral angle of the orbit. Here, they supply the orbicularis oculi muscle, and join with filaments from the lacrimal nerve and the zygomaticofacial branch of the maxillary nerve (CN V2).
Keston M. Sutherland is a British poet, and Professor of Poetics at the University of Sussex.
The posterior auricular muscle is a muscle behind the auricle of the outer ear. It arises from the mastoid part of the temporal bone, and inserts into the lower part of the cranial surface of the auricle of the outer ear. It draws the auricle backwards, usually a very slight effect.
The vulva consists of the external female sex organs. The vulva includes the mons pubis, labia majora, labia minora, clitoris, vestibular bulbs, vulval vestibule, urinary meatus, the vaginal opening, hymen, and Bartholin's and Skene's vestibular glands. The urinary meatus is also included as it opens into the vulval vestibule. Other features of the vulva include the pudendal cleft, sebaceous glands, the urogenital triangle, and pubic hair. The vulva includes the entrance to the vagina, which leads to the uterus, and provides a double layer of protection for this by the folds of the outer and inner labia. Pelvic floor muscles support the structures of the vulva. Other muscles of the urogenital triangle also give support.
Arthur Guirdham (1905–1992) was an English physician, psychiatrist, novelist, and writer on the Cathar sect, alternative medicine, ESP and reincarnation.
"Got to Get You into My Life" is a song by the English rock band the Beatles, first released in 1966 on their album Revolver. It was written by Paul McCartney and credited to Lennon–McCartney. The song is a homage to the Motown Sound, with colourful brass instrumentation and lyrics that suggest a psychedelic experience. "It's actually an ode to pot," McCartney explained. A cover version by Cliff Bennett and the Rebel Rousers, produced by McCartney, peaked at number six in 1966 in the UK. The song was issued in the United States as a single from the Rock 'n' Roll Music compilation album in 1976, six years after the Beatles disbanded. Another cover version by Earth, Wind & Fire from the Sgt. Pepper's Lonely Hearts Club Band film soundtrack peaked at number nine in the US in 1978.
References
- Miller, Mark (2006-06-23). "Joseph McCartney Online". he_means_wow. Retrieved 2007-02-16.