Sacculus (protist)

	Sacculus (protist) Sacculus may refer to: * Saccule, a bed of sensory cells in the inner ear * Sacculus (entomology), a sensory organ in the antenna of certain insects * Sacculus, a sac of peptidoglycan that has been purified from a gram-negative bacterium * Sacculus, the Latin word for money bag {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Saccule The saccule is a bed of sensory cells in the inner ear The inner ear (internal ear, auris interna) is the innermost part of the vertebrate ear. In vertebrates, the inner ear is mainly responsible for sound detection and balance. In mammals, it consists of the bony labyrinth, a hollow cavity in t .... It translates head movements into neural impulses for the brain to interpret. The saccule detects linear accelerations and head tilts in the vertical plane. When the head moves vertically, the sensory cells of the saccule are disturbed and the neurons connected to them begin transmitting impulses to the brain. These impulses travel along the vestibular portion of the eighth cranial nerve to the vestibular nuclei in the brainstem. The vestibular system is important in maintaining balance, or equilibrium. The vestibular system includes the saccule, utricle, and the three semicircular canals. The Vestibule of the ear, vestibule is the name of the fluid-filled, membrano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Sacculus (entomology) Sacculus may refer to: * Saccule, a bed of sensory cells in the inner ear * Sacculus (entomology), a sensory organ in the antenna of certain insects * Sacculus, a sac of peptidoglycan that has been purified from a gram-negative bacterium * Sacculus, the Latin word for money bag {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Peptidoglycan Peptidoglycan or murein is a unique large macromolecule, a polysaccharide, consisting of sugars and amino acids that forms a mesh-like peptidoglycan layer outside the plasma membrane, the rigid Cell wall#Bacterial_cell_walls, cell wall (murein sacculus) characteristic of most bacteria (Domain (biology), domain ''Bacteria''). The sugar component consists of alternating residues of β-(1,4) linked N-Acetylglucosamine, ''N''-acetylglucosamine (NAG) and N-Acetylmuramic acid, ''N''-acetylmuramic acid (NAM). Attached to the ''N''-acetylmuramic acid is a oligopeptide chain made of three to five amino acids. The peptide chain can be cross-linked to the peptide chain of another strand forming the 3D mesh-like layer. Peptidoglycan serves a structural role in the bacterial cell wall, giving structural strength, as well as counteracting the osmotic pressure of the cytoplasm. This repetitive linking results in a dense peptidoglycan layer which is critical for maintaining cell form and withstandi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]