A licensed vocational nurse's duties revolve around basic patient care. LVNs monitor their patients' vital signs and keep their charts up to date. They assist patients in basic hygiene and personal care, including bathing and dressing them and helping them eat if necessary.
Accessory muscles refers to muscles that assist, but do not play a primary role, in breathing. There is some controversy concerning which muscles may be considered accessory muscles of inhalation.
Figure 18.3 A lacrimal apparatus consists of the (1) lacrimal gland and (2) the structures which drain the secretions (tears) from the lacrimal apparatus. Accessory Structures â¢ Extrinsic eye muscles The six muscles which move the eyeball are called the extrinsic eye muscles.igure 18.3 A lacrimal apparatus consists of the (1) lacrimal gland and (2) the structures which drain the secretions (tears) from the lacrimal apparatus. Accessory Structures â¢ Extrinsic eye muscles The six muscles which move the eyeball are called the extrinsic eye muscles.