Put I or X opposite each of the following ( )The lysosomes within a cell contain hydrolytic enzymes capable of digesting particles within the cells. ( )One mechanism in the skin that prevents cells from becoming loose and separating is the presence of junctions called desmosomes. ( )The centrioles are microtubules that play a significant role in ATP and energy production. ( )Chromatin is the term for the loosely coiled appearance of DNA in a nondividing cell. ( )The sugar added to a water solution is termed the solvent. ( )Osmosis is the movement of water and can occur through any type of permeable membrane. ( )Osmosis is considered a special case of diffusion and is passive in nature. ( )Microvilli act to secrete mucus because they are specialized cell structures. ( )The presence of keratin in cells tends to make them dry and hard. ( )Collagen is the most common type of protein fiber found in tendons and ligaments. ( )During the aging process the amount of elastic fibers in the skin actually decreases. ( )The dermis has a rich blood supply while the epidermis is totally devoid of blood vessels. ( )The amount of blood supply is directly proportional to the ability of a cell to divide and remain vital. ( )The process of keratinization is directly related to the waterproofing function of the dermis. ( )Increased exposure to sunlight actually maintains healthy skin and reduces the effects of aging. ( )The papillary layer of the dermis partially explains the presence of fingerprints in the epidermis. ( )The eccrine sweat glands are located in the axillary areas and respond to emotional upsets. ( )In order to conserve heat, blood vessels in the skin constrict. ( )Although the bones in an elderly person represent dead tissue, they still perform a function of support. ( )Most of the skeleton in an embryo is cartilage. ( )The presence of an epiphyseal plate on an X-ray of a person's shoulder area indicates that growth has probably stopped. ( )Active exercise can actually cause an increase in the mass and strength of bone. ( )Yellow bone marrow has lost its ability to form blood cells. ( )A low level of blood calcium could be the cause that increases the activity of the osteoclasts. ( )The flexure in the neck region will develop during a secondary process as the infants raise their heads. ( )The sternal angle occurs between the first two parts of the sternum and has diagnostic value. ( )The lower ribs are firmly attached to the xiphoid process. ( )There are seven carpals and eight tarsals. ( )The acetabulum is made up of the ilium and pubis bone. ( )The angle of the pubic arch is probably greater in the female than in the male. ( )In a shoulder injury, the articular cartilage would probably be one of the first parts to heal. ( )The purpose for synovial fluid is to reduce the friction within joints and allow for an increased range of motion. ( )Turning the sole of the foot inward is an example of eversion. ( )The part of the muscle that moves is referred to as its insertion. ( )A muscle causing flexion is the antagonist to one that could cause extension at the same time. ( )The orbicularis muscles are sphincter muscles, which cause the eyes to squint and lips compress. ( )The temporalis is attached to the temporal bone and plays its greatest role in facial expression. ( )In general, the flexors of the hand and fingers are located on the posterior surface of the forearm. MCQ ( )The process, which divides the cytoplasm in half, is specifically termed _________. a- karyokinesis b-cytokinesis c-mitosis d- meiosis ( )The process that results in daughter cells with half of the original chromosome number is _____. a-Mitosis b- prophase c- meiosis ( )Which of the following would heal the slowest? a- cartilage b-tendon c-ligament d-cytokinesis d- muscle ( )What is the collective term for all of the chemical processes occurring within a cell? a-metabolism b-anabolism c- catabolism d- hydrolysis ( )A group of cells that performs a specific function is known as a _____. a-organ b- tissue c-system d-organelle ( )The _____ tissue is considered a type of lining for body areas. a-epithelial b-connective c-simple squamous epithelium d-simple columnar epithelium e-serous membranes ( )Which tissue is thin and specialized for the diffusion of gases and ions? a-cuboidal cells b-connective tissue c-simple squamous epithelium d-simple columnar epithelium ( )The air sacs in the lungs are comprised of _____ cells. pseudostratified columnar b-simple squamous c- simple columnar stratified squamous ( )The gastrointestinal tract is primarily lined with _____cells. ad- a- pseudostratified columnar d- stratified squamous b-simple squamous c- simple columnar Bone epith ( )The respiratory passages are lined with _____ cells. a- pseudostratified columnar b-simple squamous c- simple elium columnar d- stratified squamous cartil age ( )Cilia have the function of removing foreign particles and mucus from the adipo surface of the _____ system. a-digestive b-reproductive c-integumentary d-respiratory se ( )The most protective cells against friction are the _____ cell types. a-connective tissue b-nervous c-stratified squamous epithelium d-pseudostratified e-muscles ( )The _____ lining of the urinary bladder allows it to stretch without tearing or losing integrity. a-transitional epithelium b- columnar c -simple squamous c- simple columnar d- stratified squamous ( )What is the term for the space that a bone or cartilage cell lies in? a-canaliculi b-osteon c-lacuna d-Volkmann canal ( )The bone _____ are the concentric circles that surround a central blood vessel. a-canals b- osteocytes c- lamellae d-canaliculi ( )Blood is classified as a _____ tissue because it has cells embedded in a matrix. a-epithelial b-muscle c-nervous d-connective ( )The term intercalated disk is used to describe special cell junctions in which tissue? a-nervous b-cardiac muscle c-smooth muscle d-connective ( )Which tissue has the functions of storing energy, acting as insulation, and protecting organs such as the heart. a- muscle b-connective c-adipose d-nervous ( )Which type of membrane is comprised of only connective tissue? a- mucous b-synovial c-cutaneous ( )The skin is called the _____ membrane. a-epithelial b- serous c- synovial d-serous d-cutaneous ( )Which type of membrane is found around the abdominal organs? a-mucous b-serous c-epithelial d-cutaneous ( )The _____ separates the epidermis from the dermis. a-basement membrane b-presence of adipose c-epithelial cells d-subcutaneous layer ( )What is the major factor that protects skin from the damaging effects of sunlight? a-keratin b-langerhan cells c- fat d- melanin ( )Cyanosis usually is the result of a reduction in _____. a-melanin b- hemoglobin c-oxygen level d-number of blood vessels ( )The part of the hair into the dermis is the _____. a-shaft b-root c-follicle d-dermal papilla ( )The darkness of hair is due mainly due to _____. a-melanin b-keratin c-hair roots d-hair shaft ( )The pigment _____ found in vegetables can impart a yellow or orange color to the skin. a-melanin b-carotene c-retiene d-bilirubin ( )Most of the sensory fibers and structures are located in the _____ region. a-demis b-subcutaneous tissue c-epidermis d-stratum basale ( )Where is the greatest amount of keratin found? a-dermis b-stratum basale c-stratum cornium d-basement membrane ( )The stratum basale is also called the stratum _____. a-cornium b-germinativum c-spinosum d-granulosum ( )The bones of the upper arm are classified as _____ bones. a-short b- long c-irregular d-flat ( )The _____ allows a bone to increase its diameter during periods of growth. a-diaphysis b-periostium c-endostium d-epiphysis ( )The long shaft of a bone such as the femur is called its ______. a-epiphysis b-diaphysis c-periostium d-epiphyseal plate ( )The articular ends of long bones are comprised of _____ tissue. a-hyaline cartilage b-fibrous c-hemopoietic bone ( )The center of each osteon contains the _____. a-osteoblast b-Volkmann canal c-Haversian canal d-periostium d- lacunae ( )Which of these developed by intramembranous ossification? a-femur b-frontal c-ulna d-radius ( )Which bone developed by endochondral ossification? a-tibia b-parietal c-occipital d-temporal ( )The _____ represents an area for growth in the length of a long bone. a-diaphysis b-epiphysis c-epiphyseal plate d-periostium ( )The _____ is able to break down the calcium matrix of bone tissue. a-osteoblast b-osteoclast c-fibroblast d-osteocytes ( )When do the bones of the sternum become completely ossified? a-5years b-12 c-20 d-25-40 ( )A _____ fracture occurs when the broken bone is exposed to the outside by an opening in the skin. a-pathologic b-simple c-traumatic d-open ( )Which is the first to occur following a bone fracture? a-migration of fibroblast c-osteoblast proliferation b-formation of hematoma d-formation of granulation tissue ( )The callus that forms around a bone fracture is comprised of _____ tissue. a-bone b- hyaline cartilage c-fibrocartilage d-granulation tissue ( )What is the final stage of healing following a fracture? a-osteoclast remodeling b-callus formation c-osteoblast deposition d-formation of cartilage ( )There are a total of _____ bones in the entire skeleton. a-200 b-206 c-80 d-126 ( )Which of the following is an axial bone? a-femur b-vertebra c- ilium d-tibia ( )Which of the following is an appendicular bone? a-frontal b-ethmoid c-ulna d-sacrum ( )Which bone has no direct bony articulation with the skeleton? a-hyoid b-manubrium c-patella d-terminal phalanx ( )The pectoral girdle is comprised of the clavicle and _____. a-ribs b-ulna c-scapula d-os coxa ( )How many phalanges are there in the body? a-14 b-28 c-56 d-7 ( )The coronal suture separates the _____ from parietal bones. a-frontal b-temporal c-occipital ( )Which of the following is not a cranial bone? a-frontal b-lacrimal c-sphenoid d- ethmoid d-ethmoid ( )The _____ suture separates the occipital from parietal bones. lambdoidal b-coronal c-sagittal d-squamous ( )Which bone contains the ear structures? a-parietal b-maxillary c-temporal d-sphenoid ( )Which sinus, or air cell area, has the potential of having a very serious and painful inflammation that could spread to the brain? a- mastoid b-frontal c- ethmoid d-maxillary ( )What is the location of the pituitary gland? a- a-ethmoid b-parietal c-foramen magnum d-sella turcica ( )Which bone has the crista galli projection? a-ethmoid b-sphenoid c- frontal d-maxilla ( )The hard palate is made of the palatine and _____ bones. a-mandible b-ethmoid c-sphenoid d-maxilla ( )What is found only on the cervical vertebrae? a-spinous process b-lamina c-transverse process d- transverse foramen ( )The first vertebra is called the _____. a-axis b-atlas c-cervical d-dens ( )A lateral deviation of the alignment of the vertebral column is called a a-Kyphosis b-lordosis c-scoliosis d-slipped disk ( )Which is the largest of the ankle bones? a-cuboid b-talus c-calcaneus d-first metatarsal ( )Which type of bone is the primary source of red marrow in an adult? a-irregular b-long c-short d-flat ( )Which of the following types of muscle are found in the stomach or blood vessels? a-cardiac b- skeletal c-visceral d-striated ( )A group of skeletal muscle fibers is called a/an _____. a-fascicle b-tendon c-motor unit d-origin ( )The structure that connects muscles to bones is the _____. a-aponeurosis b-tendon c-ligament d-fascicle ( )The fiber cell membrane is termed the _____ . a-myofiber b-myocin c-sarcolemma d-myofibril ( )The smallest, functional unit of contraction is the _____. a-fiber b-sarcomere c-filament d-myofibril ( )The gap between the muscle and a nerve is the _____. a-synapse b-motor end plate c-motor neuron d-neuroneural junction ( )The I bands in a sarcomere are made of _____ . a-myocin b-actin c-actin and myocin d-sarcomere ( )The chemical that crosses a neuromuscular gap is _____. a-sodium b-a protein c-a neurotransmitter d-calcium ( )The combination of a neuron and the muscle fiber it associates with is called a/an _____ . a-fascicle b-moter end plate c-motor unit d- myoneural junction ( )The main neurotransmitter involved in skeletal muscle contraction is _____. a-adrenaline b-noradrenaline c-acetylcholine d-dopamine ( )Which molecule is produced during exercise, resulting in the oxygen debt? a-glycogen b-lactate c-ATP d-ADP ( )A single contraction of a muscle is called a ______. a-threshold b-twitch c-myogram d-tetanus ( )The complete contraction of a muscle, without the ability to relax, is called _____. a- A sustained contraction b-fatigue c-tetanic contraction d-oxygen debt ( )The constant contraction of a percentage of fibers within a muscle is referred to as _____. a-tetany b- tonus c-sustained contraction d-summation ( )Which of the following muscles always requires nerve impulses in order to contract? a-skeletal b-cardiac c-smooth d-visceral ( )The presence of _____ allow cardiac muscle fibers to transmit impulses faster among themselves. a-cell membrane b-nerve fiber c-intercalated disks d-peristalsis ( )The muscle is called the _____ when it is the main cause of the movement . a-prime mover b- flexor c-synergist d-antagonest ( )The sternocleidomastoid muscle was named because of its _____. a-shape b-size c- location d-points of attachment ( )Which muscle lines most of the inner cheek wall ,so help in mastication? a- orbicularis oris b-buccinators c-temporalis d-masseter ( )The following muscles belong together except which one? a-masseter b-temporalis c-buccinators d-orbicularis oris ( )Which of the following is attached to the calcaneus? a-gastrocnemius b-tibialis anterior c-soleus d- a+c