With motor neurons? - afferent = sensory information move toward the brain and spinal cord -efferent= information is taken away from the brain and spinal Cord 3 what is function of interneurons? - contact nearby neurons in brain, spinal cord or ganglion 4 what are subdivisions of the PNS? - the subdivisions of the PNS are somatic nervous system, autonomic nervous system and enteric nervous
Excitability: The ability of muscle tissue to receive a stimulus from the nervous system. Contractility: The quality that distinguishes muscle tissue from other types of tissue. 2.) Name the three types of muscle tissue found in the human body and briefly describe the primary function of each. Skeletal muscle: attached to the bones of the skeletal system.
They tend to enlarge following vigorous exercise, a phenomenon called muscular hypertrophy and are located around the body. Conversely, cardiac muscle is confined only to the heart, its main role being to distribute blood. Its myogenic nature means contractions are under involuntary control and cause prevention from fatigue. The natural beating rhythm is adjusted via sympathetic and parasympathetic neurons of the CNS to suit physiological conditions. The function of these muscles is closely related to their structure and any differences in structure allow these two types of muscle to be identified.
4. A motor neuron conducts a nerve impulse along an efferent pathway from the integration center to an effector. 5. An effector responds to the efferent impulses by contracting (if the effector is a muscle fiber) or secreting a product (if the effector is a gland). Reflexes can be categorized as either autonomic or somatic.
Distention for many involuntary digestive movements. c. What do ANS neurons regulate with regard to mechanical digestion? What are the possible responses? The ANS neurons regulate involuntary smooth muscular movements. The response is either increased or decreased contraction of the muscularis.
The brain stem is underneath the cerebrum but is infront of the cerebellum, it helps to connect the rest of the brain to the spinal cord which runs from the back of the neck towards the bottom of your back. The brain stem is in charge of all of the functions that the body needs to stay alive and working properly. This is with things like breathing, digestion and the circulation of blood. The brain stem haas several other jobs like sorting through the messages that the brain and the rest of the body are sending to one another and to also control the involuntary muscles that are in the body. The involuntary muscles are the ones that work without thinking about it like the heart and the stomach.
Unit 5- anatomy and physiology for health and social care Tissue types within the human body Nervous tissue Function of the nervous tissue include acting as a sensory input, incorporation, organisation of muscles and glands, homoeostasis and mental activity. All living cells have the capability of react to stimuli. The nervous tissue specialised to react to stimuli and conducts impulses to various organs in the body which bring about a response to the stimulus. The basic structure of the nervous tissue is a neuron, consisting of a nervous cell body and serval processes dendrites, which carrys impulses towards the nervous cell body and axon which carry impulses away from the cell body. Nervous tissues are found is all organs in the body some have more than others thought, Maximum in the nervous system, least in fatty deposits.
Myelinated neurons are typically found in the peripheral nerves (sensory and motor neurons), while non-myelinated neurons are found in the brain and spinal cord. * Dendrites or nerve endings - These small, branch-like projections of the cell make connections to other cells and allow the neuron to talk with other cells or perceive the environment. Dendrites can be located on one or both ends of the cell. | Basic Neuron Types Neurons come in many sizes. For example, a single sensory neuron from your fingertip
It is not attached to the skeleton. Cardiac muscle – this is only found in the heart and the junction where the major vessels enter or leave the heart. This muscle appears to have similar properties to both skeletal and smooth muscle in that it contains fibres which are striped but unlike striped muscle there are branches which interconnect also known as intercalculated discs. As we need to keep alive, cardiac muscle is an involuntary muscle. Nervous tissue – this is only found in the nervous system and consists of two different tls which transmit nerve impulses throughout the body
Hence this concept stresses upon the differences between the right brain and the left brain which ultimately determines a person's nature. First of all it's important for us to understand the basic brain biology. A simplified mode of the human brain consists of many parts which include: * Brain stem, hind brain, mid brain and cerebellum * Limbic system, which consists of many specialist organs including Hypothalamus, hippocampus. * Cerebral cortex, which is the distinguishing feature of human brains. The cortex is divided into two hemispheres, left and right which are connected by a thick layer of cells called corpus callosum.