levater labii superioris muscle
levator palpebrae superioris
| depressor fibres | Sensory nerve fibre's having pressure-sensitive nerve endings in the wall of certain arteries capable of activating blood pressure-lowering brainstem mechanisms when stimulated by an increase in intra-arterial pressure. (05 Mar 2000) |
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| inhibitory fibres | Nerve fibre's that inhibit the activity of the nerve cells with which they have synaptic connections, or of the effector tissue (smooth muscle, heart muscle, glands) in which they terminate. (05 Mar 2000) |
| intercolumnar fibres | Horizontal arched fibres that pass from the inguinal ligament across the medial and lateral crura of the superficial inguinal ring. Synonym: fibrae intercrurales, intercolumnar fasciae, intercolumnar fibres. (05 Mar 2000) |
| intercrural fibres | Horizontal arched fibres that pass from the inguinal ligament across the medial and lateral crura of the superficial inguinal ring. Synonym: fibrae intercrurales, intercolumnar fasciae, intercolumnar fibres. (05 Mar 2000) |
| internal arcuate fibres | <anatomy> Fibres that arise in the cuneate and gracile nuclei, pass in a curving course across the midline of the medulla oblongata, and form the contralateral medial lemniscus. It also designates other fibres such as those of the olivocerebellar tract that arch through the substance of the medulla and form sensory decussation. Synonym: fibrae arcuatae internae. (05 Mar 2000) |
| intrafusal fibres | Muscle fibre's present within a neuromuscular spindle. (05 Mar 2000) |
| intrinsic fibres | Nerve fibre's interconnecting subdivisions of the cerebral cortex of the same hemisphere or different segments of the spinal cord on the same side. Synonym: endogenous fibres, intrinsic fibres. (05 Mar 2000) |
| oblique fibres of stomach | The smooth muscle fibres of the innermost layer of the muscular coat of the stomach; the fibres occur chiefly at the cardiac end of the stomach and spread over the anterior and posterior surfaces. Synonym: fibrae obliquae gastrici. (05 Mar 2000) |
| olivocochlear fibres | A bundle of fibres that originates from the periolivary nuclei bilaterally, exits the brainstem on the vestibular nerve, joins the cochlear nerve in the inner ear, and terminates on outer hair cells. Synonym: bundle of Rasmussen, olivocochlear fibres. (05 Mar 2000) |
| osteocollagenous fibres | Fine collagenous fibre's in the matrix of osseous tissue. (05 Mar 2000) |
| osteogenetic fibres | The fibre's in the osteogenetic layer of the periosteum. (05 Mar 2000) |
| tautomeric fibres | Nerve fibre's of the spinal cord that do not extend beyond the limits of the spinal cord segment in which they originate. (05 Mar 2000) |
| thalamocortical fibres | A general term identifying nerve fibres arising from nuclei of the thalamus and projecting to, and terminating in, the cerebral cortex. (05 Mar 2000) |
| efferent fibres | Those fibres conveying impulses to effector tissues (muscle: smooth, cardiac or striated; or glands) in the periphery; those fibres exiting a specific cell group (i.e., efferent fibres of the basilar pons), used in reference to a cell group. (05 Mar 2000) |
| elastic fibres | Fibre's that are 0.2 to 2 um in diameter but may be larger in some ligaments; they branch and anastomose to form networks and fuse to form fenestrated membranes; the fibre's and membranes consist of microfibrils about 10 nm wide and an amorphous substance containing elastin. Synonym: yellow fibres. (05 Mar 2000) |