bio flashcards

22. The part of the lower brain located behind the pons that controls and coordinates involuntary, rapid, fine motor movement is called the cerebellum.

which we are allow to control by ourselves are called the voluntary muscles and the ones we

1. The anatomical region found between the lungs that extends from the sternum to the

These muscles are under control of will. These muscles are controlled by the central nervous system. i.e. Coraco brachialis muscle. This is found in the upper part of the arm and flexes the shoulder joint.

What components of the nervous system are involved in skeletal muscle movement? How does motor impulse move throughout the body? What is a “motor unit”?

Now, pick one of those muscles and trace their control from the appropriate brain structure all the way to the NMJ. Be sure to include all intermediate structures, synapses, plexuses and nerves.

The axons are slender processes of uniform diameter arising from the hillock. There is usually only one unbranched axon per neuron.

In eukaryotes, stored primarily in the cell nucleus. A nucleic acid using deoxyribose rather than ribose.

The Central nervous systems include the brain and spinal cord which transfers voluntary nerve impulse to skeletal muscles, skin, muscles, and glands.

Your friend’s dog, Spot, jumped onto a table with a terrarium housing your pet salamander, Lizzie. Unfortunately, the table tipped over and Spot has suffered a head injury which damaged the primary motor cortex. Lizzie lost most of the distal right forelimb in the accident. Please answer the following questions regarding the nervous system and regeneration, in a .docx, .pptx, or .pdf format.

The CNS contains the brain and spinal cord. Its main functions include: processing, integrating, and coordinating sensory information and motor instructions. The sensory data conducts information that is being processed from internal and external conditions the body is experiencing. Motor commands regulate and control peripheral organs (skeletal muscles). The brain functions under memory, emotions, learning, and intelligence. The PNS consist of the neural tissue found outside of the CNS. It functions in sending data to the CNS which motor commands are than carried out to the peripheral tissues/systems. Multiple nerve fibers send sensory data and motor commands in the PNS. The nerves that assist with transmitting data include the cranial nerves and spinal nerve. However, the PNS can be divided into afferent (to bring in) and efferent (to bring out) divisions of transferring data. The afferent division functions in bringing in sensory data to the CNS. Sensory structures are receptors that detect internal/external environmental change and adjusting accordingly. The efferent division functions in carrying out motor commands from the CNS to glands, muscles, and adipose tissue. The efferent division contains somatic

The parietal lobe is responsible for our motor co-ordination; motor impulses to the muscles are

The nerve consists of two different motor fibers: the somatic motor component and the parasympathetic motor component. The somatic motor component controls the movement of four extrinsic muscles and the parasympathetic motor component controls the sphincter pupillae and ciliary muscles (McKinley, O'Loughlin, & Bidle, 2017, p. 44). CN III can be divided into two major branches: the superior division and inferior division (Jaffee & Stewart, 2016). The superior branch is composed of motor fibers that innervate the levator palpebrae superioris and the superior

The hypothalamus transmits nerve impulses that go through brain stem, spinal cord, and preganglionic sympathetic nerve fibers to adrenal medulla, then will

The two components of the central nervous system (CNS) are the brain and the spinal cord. Communication between the brain and the spinal cord happens through motor neurons, which are nerve cells that enable motor movement. Each motor neuron is made up of a cell body, which holds all the cell components, dendrites which send information it receives to the cell body, and an axon which sends nerve impulses to the muscle (Porth & Matfin, 2009). As electrical impulses are sent through the motor neuron, it stimulates the muscle fibers in the body to move. This is the process in which motor function happens. Therefore, the basic abilities to breathe, speak, swallow, walk and button a shirt are