A bundle of nerve fibers is surrounded by perineurium, a connective tissue that wraps around them.
The epineurium
A nerve is an enclosed, cable-like bundle of axons in the peripheral nervous system. Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium.
The epimysium surrounds the muscle, perimysium a bundle of fibers and the endomyosium surrounds the vesle.
The Anterior Commissure (precommissure) is a bundle of nerve fibers (white matter), connecting the two cerebral hemispheres across the midline, and placed in front of the columns of the fornix.The fibers of the anterior commissure can be traced laterally and backwards on either side beneath the corpus striatum into the substance of the temporal lobe. Corpus callosum
Central (Haversian) Canal is the canal that runs through the core of each osteon.
Each eye has one nerve for vision, the optic nerve, Cranial Nerve II. Nerves are actually bundles of many nerve fibers. There are nerves that supply impulses for the muscles associated with the eyeballs so they can move are the Cranial Nerve III, Oculomotor, Cranial Nerve IV, Trochlear, and Cranial Nerve VI, the Abducens nerve.
A nerve is an enclosed, cable-like bundle of axons in the peripheral nervous system. Within a nerve, each axon is surrounded by a layer of connective tissue called the endoneurium.
A neuron is an individual cell in the PNS or CNS that can be excited and conduct impulses along its axon. A nerve is a bundle of multiple neuron fibers that each are carrying their own signals. They are protected by connective tissue. Eventually the neuron fibers diverge away from the nerve to reach their destination.
The ventral root of the spinal nerve has the efferent fibers and the dorsal root has the afferent. Prior to joining each other in the spine they each consist of only those fibers.
A bundle of neurons is called a nerve. The neuron bundle, nerve, has afferent and efferent pathways, that means that it is like highways that are parallel to each other yet carry impulses, or traffic, in both directions.
The epimysium surrounds the muscle, perimysium a bundle of fibers and the endomyosium surrounds the vesle.
The coarse connective tissue that covers each fascicle (bundle of fibers)
Cross over to the opposite side at the chiasma.
Each eye contains an optic nerve, as the meet at the optic chiasm, some of the nerve fibers cross over. This sensitive area is referred to as the optic nerve pathway crossover.
So that nerves can send a signal to the bundle instead of each individual fiber.
cross over to the opposite side at the optic chiasma
Endomysium is the connective tissue that surrounds each muscle fibers cells. Its purpose is to hold capillary beds and contact sarcolemma.
The muscle belly is the main bulk of the muscle, made up of many layers of tissue surrounded by fascia (sheets of connective tissue running throughout your body). The structure of a muscle, from macro (large) to micro (small) is: 1. muscle belly - a bundle of fascicles 2. fascicle - a bundle of fibers 3. fiber - a muscle cell (bundle of myofibrils) 4. myofibril - a bundle of myofilaments 5. filament - actin & myosin proteins The fascia in the muscle, called deep fascia (as opposed to superficial fascia which lies just beneath the skin) has 3 layers: 1. epimysium - an overcoat of dense connective tissue surrounding the entire muscle 2. perimysium - fibrous connective tissue that surrounds each fascicle (bundle of muscle fibers) 3. endomysium - sheath of connective tissue surrounding each muscle fiber