The branch of science that studies the structures of the human body that are visible to the naked eye is called: |
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anatomy
Anatomy is also defined as the science of the structure of organisms or of their parts. |
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The structure that encloses living plant and animal cells is called the: |
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cell membrane
The cell membrane or cell wall also permits soluble substances to enter and leave the cell. |
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All living cells are composed of a substance known as: |
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protoplasm
Protoplasm is a colorless, jellylike substance that the cells of all living things are made of. |
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The cell structure that contains food materials for cell growth and self-repair is the: |
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cytoplasm
The cytoplasm contains food material necessary for growth, reproduction, and self-repair of the cell. |
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The phase of metabolism in which larger molecules are built from smaller ones is called: |
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anabolism
During anabolism,
the body stores water, food, and oxygen for the time when these
substances will be needed for cell growth and repair. |
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Tissues are made up of ________ that perform a specific function. |
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cells
Tissues are a group of cells that perform a specific function. |
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Examples of ________ include the brain and spinal cord. |
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nerve tissue
Nerve tissue is composed of special cells known as neurons, which make up the nerves, brain, and spinal cord. |
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The protective covering on body surfaces is a type of tissue called: |
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epithelial tissue
Skin, mucous
membranes, and the lining of the heart, digestive and respiratory
organs, and glands are examples of epithelial tissue. |
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Body structures such as the heart, lungs, kidneys, stomach, and intestines are called: |
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organs
Organs are groups of tissues designed to accomplish a specific function. |
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Organs that make up the circulatory system include: |
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heart and blood vessels
The heart and blood vessels control the circulation of the blood through the body. |
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The physical foundation of the body is the: |
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skeletal system
The skeletal system
is the physical foundation or framework of the body. It serves as a
means of protection, support, and movement. |
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The science that studies bones and their anatomy, structure, and functions is: |
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osteology
Os is the technical term for bone. The word osteology is derived from os. |
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The brain is protected by the portion of the skull called the: |
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cranium
The cranium is the oval, bony case that protects the brain. |
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Bones serve many important functions, including: |
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producing red and white blood cells
One of the functions of bone marrow is to help produce both white and red blood cells. |
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The sides and crown (top) of the cranium are formed by two bones called the: |
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parietal bones
The parietal bones are between the frontal and occipital bones. |
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"Adam's apple" is the common term for the U-shaped bone called the: |
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hyoid
The hyoid is the bone at the base of the tongue that supports the tongue and its muscles. |
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The heart, lungs, and other organs are encased in a bony cage called the: |
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thorax
The thorax, or chest, is a bony cage that protects the heart, lungs, and other organs. |
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The bones of the face also known as cheekbones are the: |
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zygomatic bones
The zygomatic bones form the prominence of the cheeks. |
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The bone of the face that is the largest and strongest is the: |
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mandible
The mandible is the lower jawbone; it forms the entire lower jaw. |
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The connection between two or more bones of the skeleton is called a/an: |
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joint
A joint is a connection between bones. It may be movable, such as the elbow, or immovable, such as in the skull. |
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There are two temporal bones, which form the: |
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sides of the head
The two temporal bones form the sides of the head in the ear region below the parietal bones. |
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The forearm is made up of two bones, the: |
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ulna and radius
The ulna is the inner and larger bone of the forearm, and the radius is the smaller bone. |
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The fingers of each hand consist of 14 bones called the: |
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phalanges
There are three phalanges in each finger and two in the thumb. |
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The two bones that form the bridge of the nose are the: |
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nasal bones
The two nasal bones form the bridge of the nose. |
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The portion of a muscle that is attached to an immovable section of the skeleton is called the: |
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origin
The origin of a muscle is the part that does not move. It is attached to the skeleton and is usually part of a skeletal muscle. |
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The study of muscles and their structure, functions, and diseases is called: |
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myology
The prefix my- or myo- means muscle. |
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The voluntary muscles that are controlled by the will are called: |
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striated muscles
Striated muscles are also called skeletal or voluntary muscles. |
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The top of the skull is covered by a broad muscle called the: |
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epicranius
The epicranius, or occipito-frontalis, is a broad muscle that covers the top of the skull. |
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The ring muscle of the eye socket that enables you to close your eyes is the: |
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orbicularis oculi
The orbicularis oculi completely surrounds the margin of the eye socket and enables you to close your eyes. |
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Chewing or mastication are controlled by the: |
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masseter and temporalis muscles
These two muscles coordinate in opening and closing the mouth. |
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The swinging movements of the arm are controlled by several muscles, including the: |
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trapezius
The trapezius, latissimus dorsi, and pectoralis major and minor all assist the swinging movements of the arm. |
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The head is lowered and rotated by a muscle of the neck called the: |
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sternocleidomastoideus
The sternocleidomastoideus muscle rotates and lowers the head. |
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The fingers are drawn together by muscles called the: |
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adductors
The adductors are muscles at the base of each finger. |
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The part of the nervous system composed of the brain, spinal cord, spinal nerves, and cranial nerves is the: |
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central nervous system
The central
nervous system controls consciousness and all mental activities,
voluntary muscle actions, and voluntary functions of the five senses. |
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The nerve tissue that is the largest and most complex in the body is the: |
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brain
The brain is the largest and most complex nerve tissue in the body and is contained in the cranium. |
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Messages are carried from the sense organs to the brain by: |
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sensory nerves
Sensory or afferent nerves carry impulses or messages from the sense organs to the brain. |
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Impulses are sent away from the cell body to other neurons, glands, or muscles by the: |
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axon
The axon and axon terminal send impulses away from the cell body to other neurons, glands, or muscles. |
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The external ear and the skin above the temple are affected by the: |
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auriculotemporal nerve
The auriculotemporal nerve affects the skin above the temple up to the top of the skull. |
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The nerve affecting the skin at the point and lower side of the nose is the: |
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nasal nerve
The nasal nerve is a branch of the fifth cranial nerve. |
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The chief sensory nerve of the face is the: |
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fifth cranial nerve
The fifth cranial nerve is the largest of the cranial nerves and serves the muscles that control chewing. |
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The scalp and upper eyelids are affected by the: |
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supraorbital nerve
The supraorbital nerve affects the skin of the forehead, scalp, eyebrows and upper eyelids. |
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The motor nerve that, with its branches, controls the muscles of facial expression is the: |
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seventh cranial nerve
The seventh cranial nerve emerges near the lower part of the ear and extends to the muscles of the neck. |
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The muscles of the upper part of the cheek are affected by the: |
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zygomatic nerve
The zygomatic nerveis a branch of the seventh (facial) nerve. |
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The nerve that affects the muscles of the mouth is the: |
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buccal nerve
The buccal nerve is a branch of the seventh cranial nerve. |
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Nerves originating from the spinal cord are called the: |
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cervical nerves
The cervical nerves supply the muscles and scalp at the back of the head and neck. |
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The two cervical nerves located at the side of the neck are the greater auricular nerve and the: |
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cervical cutaneous nerve
The cervical cutaneous nerve is one of four branches of the cervical nerves. |
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One of four principal nerves of the arm and hand that supplies the thumb side of the arm is the: |
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radial nerve
The radial nerve supplies the thumb side of the arm and back of the hand. |
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The sensory-motor nerve that, with its branches, supplies the fingers is the: |
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digital nerve
The digital nerve supplies the fingers. |
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The blood is circulated throughout the body by means of the: |
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circulatory system
The circulatory system moves the blood through the body by means of the heart and blood vessels. |
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The blood vessels that connect the smaller arteries to the veins are the: |
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capillaries
Capillaries are minute, thin-walled blood vessels. |
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The interior of the heart contains the ventricles and the: |
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atria
Atria (plural of atrium) are the thin-walled upper chambers of the heart. |
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The lower heart chambers are called the: |
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ventricles
Ventricles are the lower, thick-walled chambers of the heart. |
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The blood vessels that are thick-walled, muscular, and flexible are the: |
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arteries
Arteries carry oxygenated blood from the heart to the capillaries. |
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The thin-walled blood vessels that carry blood containing waste products are the: |
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veins
Veins carry blood containing waste products from the capillaries back to the heart. |
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The fluid that carries waste and impurities away from cells is: |
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lymph
Lymph is the fluid that circulates in the lymphatics and acts as an aid to the blood system. |
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The heart is enclosed by a membrane known as the: |
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pericardium
The pericardium is the membrane that encloses the heart. |
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A complex iron protein that gives blood its bright red color is: |
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hemoglobin
Hemoglobin is a complex iron protein found in red blood cells. |
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The salty, sticky, nutritive fluid that circulates through the body is: |
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blood
Blood performs many critical functions in the body. |
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The fluid part of blood that is about 90 percent water is: |
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plasma
Plasma carries food to the cells and takes carbon dioxide away from them. |
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Blood cells that aid in the forming of clots are: |
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platelets
Platelets are much smaller than red blood cells. |
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Cells produced in the red bone marrow that carry oxygen to body cells are called: |
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red blood cells
Red blood cells are produced in the red bone marrow and contain hemoglobin. |
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Blood performs five critical functions, one of them being: |
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carrying nutritive substances to all body cells
Blood carries water, oxygen, food, and secretions to all cells of the body. |
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The lymphatic vessels circulate lymph, which is filtered by: |
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lymph nodes
This filtering process helps to fight infection. |
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Blood is supplied to the forehead, internal ear and nose by the: |
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internal carotid artery
The internal and external carotid arteries are located on either side of the head. |
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Blood is supplied to the upper lip and nose region by the artery called the: |
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superior labial artery
The superior labial artery is a branch of the facial artery. |
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The artery that supplies blood to the lower region of the face is the: |
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facial artery
The facial artery is a branch of the external carotid artery. |
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Blood to the temples is supplied by the: |
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middle temporal artery
The middle temporal artery is a branch of the superficial temporal artery. |
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The internal carotic artery has two branches you should be familiar with, the: |
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supraorbital and infraorbital
Together these arteries supply blood to the upper eyelids, forehead and muscles of the eye. |
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The arms and hands are supplied by two main arteries, the: |
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ulnar and radial
These two arteries supply both the little-finger side and the thumb side of the arm and hand. |
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Duct glands and ductless glands make up the: |
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endocrine system
The endocrine
system is made up of specialized glands that affect the growth,
development, sexual activities, and health of the entire body. |
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Intestinal glands belong to the group called: |
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duct glands
Duct or exocrine glands produce a substance that travels through small tube-like ducts. |
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Secretions of the endocrine glands that influence the welfare of the body are: |
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hormones
Hormones stimulate functional activity in other parts of the body. |
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The body system responsible for changing food into nutrients is the: |
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gastrointestinal system
The gastrointestinal system changes food into nutrients and waste. |
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The body system located in the chest cavity and protected by the ribs is the: |
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respiratory system
The respiratory system consists of the lungs and air passages. |
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The skin helps purify the body by eliminating: |
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perspiration
The skin eliminates perspiration, or sweat, through the sweat glands. |
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