CRCST Chapter 3 (8th Edition) Review Quiz

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CRCST Chapter 3 (8th Edition) Review Quiz - Quiz

Anatomy for Central Service Technicians


Questions and Answers
  • 1. 

    This system gives the body shape and support.

    • A.

      Muscular system

    • B.

      Nervous system

    • C.

      Skeletal system

    • D.

      Circulatory system

    Correct Answer
    C. Skeletal system
    Explanation
    The skeletal system is responsible for giving the body shape and support. It consists of bones, cartilage, ligaments, and tendons that work together to provide structure and stability to the body. The bones also protect vital organs and serve as attachment points for muscles, allowing for movement and locomotion. Additionally, the skeletal system plays a crucial role in producing blood cells, storing minerals, and maintaining the body's overall homeostasis.

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  • 2. 

    This tissue acts as a cushion between bones to prevent them from rubbing together.

    • A.

      Tendon

    • B.

      Muscle

    • C.

      Cartilage

    • D.

      Ligament

    Correct Answer
    C. Cartilage
    Explanation
    Cartilage is a type of connective tissue that acts as a cushion between bones. It is flexible and smooth, allowing bones to move against each other without friction or pain. It also helps to absorb shock and distribute pressure evenly across the joint. This prevents bones from rubbing together and reduces the risk of damage or wear. Tendons connect muscles to bones, muscles are responsible for movement, and ligaments connect bones to other bones. Therefore, cartilage is the correct answer as it specifically provides cushioning between bones.

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  • 3. 

    These muscles control involuntary movements like breathing, digestion, etc.

    • A.

      Smooth

    • B.

      Cardiac

    • C.

      Skeletal

    • D.

      Fascia

    Correct Answer
    A. Smooth
    Explanation
    Smooth muscles are responsible for controlling involuntary movements like breathing, digestion, and other functions in the body. These muscles are found in the walls of organs, blood vessels, and other structures. They are not under conscious control and work automatically to regulate various bodily processes. Cardiac muscles, on the other hand, specifically control the contractions of the heart, while skeletal muscles are responsible for voluntary movements. Fascia refers to connective tissue that surrounds and supports muscles and other structures.

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  • 4. 

    This surgical procedure consists of removing an ear bone that has thickened and no longer transmits sound waves and replacing it with an artificial implant to improve hearing.

    • A.

      Tympanoplasty

    • B.

      Stapedectomy

    • C.

      Auditory implantation

    • D.

      Myringotomy

    Correct Answer
    B. Stapedectomy
    Explanation
    Stapedectomy is the correct answer because it involves the removal of a thickened ear bone that hampers sound wave transmission and replacing it with an artificial implant to enhance hearing. This surgical procedure specifically targets the stapes bone, which is one of the three small bones in the middle ear responsible for transmitting sound vibrations. By removing the dysfunctional stapes bone and replacing it with a prosthesis, sound conduction is improved, leading to better hearing.

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  • 5. 

    More than 55% of blood is made up of this yellowish liquid.

    • A.

      Platelets

    • B.

      Red blood cells

    • C.

      White blood cells

    • D.

      Plasma

    Correct Answer
    D. Plasma
    Explanation
    Plasma is the correct answer because it is the yellowish liquid component of blood that makes up more than 55% of its volume. It is responsible for carrying nutrients, hormones, and waste products throughout the body, as well as helping to maintain blood pressure and regulate body temperature. Platelets, red blood cells, and white blood cells are all important components of blood, but they make up a smaller percentage compared to plasma.

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  • 6. 

    The organ that filters the blood to remove amino acids and neutralize some harmful toxins.

    • A.

      Kidney

    • B.

      Pancreas

    • C.

      Liver

    • D.

      Gall bladder

    Correct Answer
    C. Liver
    Explanation
    The liver is the correct answer because it is the organ responsible for filtering the blood and removing amino acids. Additionally, it plays a crucial role in neutralizing harmful toxins in the body. The liver performs various functions, including detoxification, protein synthesis, and production of bile, which aids in digestion. It is an essential organ for maintaining overall health and well-being.

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  • 7. 

    This surgical procedure removes the uterus.

    • A.

      Hysteroscopy

    • B.

      Hysterectomy

    • C.

      Dilation & curettage

    • D.

      Bilateral salpingo-oophorectomy

    Correct Answer
    B. Hysterectomy
    Explanation
    A hysterectomy is a surgical procedure that involves the removal of the uterus. This procedure is typically performed to treat various conditions such as uterine fibroids, endometriosis, or uterine prolapse. It can also be done as a preventive measure for certain types of cancer, such as cervical or uterine cancer. During a hysterectomy, the uterus is completely removed, which means that the patient will no longer be able to conceive or carry a pregnancy. This procedure can be performed through different methods, including abdominal, vaginal, or laparoscopic approaches.

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  • 8. 

    This gland stimulates body growth.

    • A.

      Adrenal

    • B.

      Thyroid

    • C.

      Pancreas

    • D.

      Pituitary

    Correct Answer
    D. Pituitary
    Explanation
    The pituitary gland is often referred to as the "master gland" because it controls the functions of other endocrine glands in the body. One of its main functions is to secrete growth hormone, which stimulates body growth. Therefore, the pituitary gland is responsible for regulating and promoting growth in the body.

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  • 9. 

    This is the lining of the uterus.

    • A.

      Vagina

    • B.

      Endometrium

    • C.

      Fimbriae

    • D.

      Skin

    Correct Answer
    B. Endometrium
    Explanation
    The lining of the uterus is called the endometrium. It is a layer of tissue that thickens and sheds each month during the menstrual cycle. The endometrium provides a suitable environment for the implantation of a fertilized egg and plays a crucial role in supporting pregnancy. If fertilization does not occur, the endometrium is shed during menstruation.

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  • 10. 

    This surgical procedure removes tissue or displaced bone from the wrist area to release pressure on the median nerve.

    • A.

      Carpal tunnel repair.

    • B.

      Ulnar nerve transposition

    • C.

      Arthrotomy

    • D.

      Fasciotomy

    Correct Answer
    A. Carpal tunnel repair.
    Explanation
    Carpal tunnel repair is the correct answer because it involves removing tissue or displaced bone from the wrist area to alleviate pressure on the median nerve. This procedure is commonly performed to treat carpal tunnel syndrome, a condition characterized by compression of the median nerve in the wrist, leading to symptoms like pain, numbness, and tingling in the hand and fingers. By releasing the pressure on the median nerve, carpal tunnel repair can help alleviate these symptoms and improve hand function.

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  • 11. 

    The largest part of the human brain is the 

    • A.

      Brain stem.

    • B.

      Cerebellum.

    • C.

      Cerebrum.

    • D.

      Spinal cord.

    Correct Answer
    C. Cerebrum.
    Explanation
    The cerebrum is the largest part of the human brain. It is responsible for higher cognitive functions such as thinking, reasoning, memory, and voluntary movement. It is divided into two hemispheres and is further divided into lobes that control specific functions. The cerebrum plays a crucial role in human intelligence and is responsible for complex behaviors and decision-making. The brain stem, cerebellum, and spinal cord are also important parts of the brain, but they are comparatively smaller in size than the cerebrum.

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  • 12. 

    This surgical procedure is the relocation of an undescended testicle.

    • A.

      Transurethral resection

    • B.

      Prostatectomy

    • C.

      Orchiopexy

    • D.

      Orchiectomy

    Correct Answer
    C. Orchiopexy
    Explanation
    Orchiopexy is the correct answer for this question because it involves the surgical relocation of an undescended testicle. This procedure is performed to bring the testicle down into the scrotum and secure it in place to prevent future complications. Transurethral resection is a different surgical procedure used to remove or treat conditions in the urethra. Prostatectomy is the surgical removal of the prostate gland. Orchiectomy is the surgical removal of the testicle.

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  • 13. 

    The throat is also called the 

    • A.

      Esophagus.

    • B.

      Larynx.

    • C.

      Trachea.

    • D.

      Pharynx.

    Correct Answer
    D. Pharynx.
    Explanation
    The throat is also known as the pharynx. The pharynx is a muscular tube that connects the nasal cavity and mouth to the esophagus and larynx. It plays a crucial role in both the respiratory and digestive systems. The esophagus is a separate structure that connects the throat to the stomach, while the larynx is responsible for producing sound and protecting the airway during swallowing. The trachea, also known as the windpipe, is a tube that connects the larynx to the lungs. Therefore, the correct answer is pharynx.

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  • 14. 

    This surgical procedure is the removal of the gall bladder.

    • A.

      Cholecystectomy

    • B.

      Colectomy

    • C.

      Parotidectomy

    • D.

      Gastrectomy

    Correct Answer
    A. Cholecystectomy
    Explanation
    Cholecystectomy is the correct answer because it refers to the surgical procedure of removing the gall bladder. The term "chole-" relates to the gall bladder, while "-ectomy" means the removal of a specific organ or part of the body. Colectomy is the removal of the colon, Parotidectomy is the removal of the parotid gland, and Gastrectomy is the removal of the stomach. These options are not relevant to the removal of the gall bladder, making Cholecystectomy the correct choice.

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  • 15. 

    The hip joint is an example of a 

    • A.

      Gliding joint.

    • B.

      Ball and socket joint.

    • C.

      Pivot joint.

    • D.

      Hinge joint.

    Correct Answer
    B. Ball and socket joint.
    Explanation
    The hip joint is classified as a ball and socket joint because it consists of a ball-shaped head of the femur fitting into a cup-shaped socket in the pelvis. This type of joint allows for a wide range of motion in multiple directions, including flexion, extension, abduction, adduction, and rotation. The ball and socket joint provides stability and strength, making it suitable for weight-bearing activities and supporting the body's movements.

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  • 16. 

    This tissue covers the body's external surface.

    • A.

      Epithelial tissue

    • B.

      Connective tissue

    • C.

      Muscular tissue

    • D.

      Nervous tissue

    Correct Answer
    A. Epithelial tissue
    Explanation
    Epithelial tissue is the correct answer because it is the type of tissue that covers the body's external surface. Epithelial tissue is made up of tightly packed cells that form a protective barrier and is found on the outermost layer of the skin, as well as lining the internal organs and body cavities. It acts as a barrier against pathogens, regulates the exchange of substances, and provides protection and support to underlying tissues.

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  • 17. 

    The brain center of a cell is 

    • A.

      Cell membrane.

    • B.

      Cytoplasm.

    • C.

      Nucleus.

    • D.

      Deoxyribonucleic acid

    Correct Answer
    C. Nucleus.
    Explanation
    The brain center of a cell is the nucleus. The nucleus is a membrane-bound organelle that contains the cell's genetic material, DNA. It controls all the activities of the cell by regulating gene expression and synthesizing RNA. The nucleus also plays a crucial role in cell division, as it is responsible for the replication and distribution of DNA to daughter cells. Therefore, the nucleus can be considered as the brain or control center of the cell.

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  • 18. 

    Cartilage is replaced by bone through a process called

    • A.

      Ossification.

    • B.

      Calcification.

    • C.

      Osmosis.

    • D.

      Cancellous formation.

    Correct Answer
    A. Ossification.
    Explanation
    Ossification is the process by which cartilage is replaced by bone. During ossification, specialized cells called osteoblasts produce new bone tissue, which gradually replaces the cartilage. This process is essential for the growth and development of bones, as well as for the healing of fractures. Calcification refers to the deposition of calcium salts in tissues but does not involve the replacement of cartilage by bone. Osmosis is the movement of water across a semi-permeable membrane, and cancellous formation refers to the formation of spongy bone within the medullary cavity.

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  • 19. 

    The white portion of the eye is called the

    • A.

      Retina.

    • B.

      Iris.

    • C.

      Pupil.

    • D.

      Sclera.

    Correct Answer
    D. Sclera.
    Explanation
    The white portion of the eye is called the sclera. The sclera is the tough, outer layer of the eye that helps to maintain the shape and protect the delicate structures inside. It is composed of dense connective tissue and gives the eye its characteristic white appearance. The sclera also provides attachment points for the muscles that move the eye. The retina, on the other hand, is a layer of tissue located at the back of the eye that contains the light-sensitive cells responsible for vision. The iris is the colored part of the eye, and the pupil is the opening in the center of the iris that allows light to enter the eye.

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  • 20. 

    This is referred to as the voice box.

    • A.

      Pharynx

    • B.

      Larynx

    • C.

      Mouth

    • D.

      Trachea

    Correct Answer
    B. Larynx
    Explanation
    The larynx, commonly known as the voice box, is responsible for producing sound. It is located in the throat and contains the vocal cords, which vibrate to create sound when air passes through them. The larynx plays a crucial role in speech and is also involved in swallowing and preventing food or liquid from entering the airway.

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