A&P Lab Exam #2
What is the structure labeled "Y"? (Inside Skull Sagittal View)
Volmer
What is the blue spine region?
Thoracic
Which two regions of the spine form primary curves?
Thoracic and sacral
The ribs articulate with the
Thoracic vertebrae
The knee joint is formed by the articulation of what bones?
Tibia and femur
What is labeled "13" (Skeleton)
Tibula
Canaliculi
Tiny canals connecting osteocytes of an osteon
What is labeled "O" (Long Bone Anatomy)
Trabeculae of spongey bone
What is the anatomical name for the combination of cisternae and a transverse tubule?
Triad
What is labeled "7" (Skeleton)
Ulna
Which muscle is named for either shape or size?
Vastus lateralis Deltoid Latissimus dorsi Pectoralis major
Which of these muscles is a member of the quadriceps group?
Vastus medialis Vastus intermedius Vastus lateralis Rectus femoris
What is labeled "22" (Skeleton)
Vertebrae
The ribs that have no attachment to the sternum are
11-12
What would most likely happen if there were a decrease in the number of acetylcholine receptors in an NMJ?
Decreased action potential generation at the motor endplate
The powerful abductor muscle of the upper arm is the
Deltoid
What is labeled "B" (Long Bone Anatomy)
Diaphysis
What is labeled "I" (Long Bone Anatomy)
Endosteum
What is labeled "D" (Long Bone Anatomy)
Epiphyseal line
What is labeled "A" (Long Bone Anatomy)
Epiphysis
What is labeled "C" (Long Bone Anatomy)
Epiphysis
The release of calcium ions from the sarcoplasmic reticulum in response to an action potential is known as ________.
Excitation-contraction coupling
If you bruised your gluteus maximus, you would expect to experience discomfort when
Extending and laterally rotating the hip
Which of the following muscles compresses the abdomen?
External oblique, rectus abdominis, and transverse abdominis
What is labeled "26" (Skeleton)
Femur
All of the following bones form the coxal bone except the
Fibula
What is labeled "14" (Skeleton)
Fibula
What type of bone is the sternum?
Flat
What is labeled "16" (Skeleton)
Frontal
What is the structure labeled "A"? (Skull Frontal View)
Frontal
Which of the following bones is unpaired?
Frontal
Which of the following does not control flexion of the hip?
Gluteus maximus
The infraspinatus has its insertion on the
Greater tubercle of humerus
What is the name for the region of the sarcomere that contains only thick filaments?
H-Band
Cervical Atlas
Has no body. Superior surfaces of its transverse process contain large depressions that receive occipital condyles of the skull. Atlas (C1) joint allows head to nod "yes". Axis (C2) acts as a pivot for rotation of the Atlas (and skull) above. It has an upright process "the Dens" or "odontoid process", which acts as a pivot point. The joint beween C1 and C2 allows head to nod "no".
What is pes cavus?
High arches
What is labeled "21" (Skeleton)
Humerus
What is the structure labeled "C"? (Inside Skull Sagittal View)
Hypophyseal
What is labeled "23" (Skeleton)
Ilium
Differences in male and females pelvis
Males have deeper fossa's Females have a wider foreman Females coccyx point is inferiorly and males point laterally
What is the structure labeled "E"? (Skull Frontal View)
Mandible
What is labeled "18" (Skeleton)
Manible
The clavicles articulate with which portion of the sternum?
Manubrium
The ________ muscle is the strongest jaw muscle.
Masseter
The sternocleidomastoid inserts on the
Mastoid process of temporal bone
What is labeled "D" (Bone Structure)
Matrix
Which of the following labels best matches osteocyte?
Mature bone cell
What is labeled "17" (Skeleton)
Maxilla
What is the structure labeled "D"? (Skull Frontal View)
Maxilla
Which of the following is an attachment site for a tendon on the humerus?
Medial epicondyle
What is labeled "G" (Long Bone Anatomy)
Medullary Cavity
What is labeled "9" (Skeleton)
Meta Carpus
What is labeled "29" (Skeleton)
Meta Tarsal
What is the "group name" for a motor nerve fiber and all the muscle fibers it stimulates?
Motor Unit
Which of these is NOT a primary function of the skeletal system?
Movement
Canaliculi are
Narrow passageways in the matrix connecting lacunae to blood supply.
Crest
Narrow ridge of bone; usually prominent
What is the structure labeled "B"? (Skull Frontal View)
Nasal
Which of the following bones do not contain a sinus?
Nasal
Smooth Muscle
Nonstraited One Nuclei Tapered at ends Involuntary
What is labeled "F" (Long Bone Anatomy)
Nutrient Artery
What is labeled "3" (Skeleton)
Occipital
What is the structure labeled "B"? (Skull Sagittal View)
Occipital
Which of the following is the insertion of the triceps brachii?
Olecranon process of the ulna
The "kissing muscle" that purses the lips is the
Orbicularis oris
________ cells are located in the inner cellular layer of the periosteum.
Osteogenic
What is the structure labeled "X"? (Inside Skull Sagittal View)
Palatine
What is labeled "1" (Skeleton)
Parietal
What is the structure labeled "A"? (Skull Sagittal View)
Parietal
What is labeled "L" (Long Bone Anatomy)
Periosteum
What is labeled "N" (Long Bone Anatomy)
Periosteum
What is the structure labeled "H"? (Inside Skull Sagittal View)
Perpendicular Plate
What is labeled "25" (Skeleton)
Phalanges
What is labeled "30" (Skeleton)
Phalanges
What is labeled "12" (Skeleton)
Platella
What is it called when the myosin heads pivot and pull on the actin filaments?
Power Stroke
Process
Projection or prominence
What is labeled "10" (Skeleton)
Pubic Crest
The four prominent muscles on the anterior thigh comprise the ________ muscle group.
Quadriceps femoris
What is labeled "6" (Skeleton)
Radius
Identify the bone(s) of the forearm.
Radius and ulna
Epicondyle
Raised area on or above a condyle
Muscles with fibers that run parallel to the long axis of the body are called
Rectus
During abdominal surgery, the surgeon makes a cut lateral to the linea alba. The muscle that would be cut is the
Rectus abdominis
What is labeled "E" (Long Bone Anatomy)
Red Marrow
What is labeled "5" (Skeleton)
Ribs
Foramen
Round or oval opening through a bone
Condyle
Rounded articular projection
What is the green spine region?
Sacral
What is labeled "24" (Skeleton)
Sacrum
Identify the suture found between the 2 parietal bones.
Sagittal suture
What is the cell membrane of a muscle cell called?
Sarcolemma
The interval between two Z lines is called
Sarcomere
Which structure stores calcium ions for release in the muscle cell?
Sarcoplasmic reticulum
The only knee flexor that originates superior to the acetabulum is the
Sartorius
Which of the following carpal bones is most commonly fractured during a fall?
Scaphoid
What is labeled "20" (Skeleton)
Scapula
Fossa
Shallow depression
Spine
Sharp, slender, often pointed projection
Lacunae
Sites of osteocytes
The cells must be stimulated by a neuron to contract
Skeletal Muscle
Cells are multinucleate
Skeletal muscle
Tubercle
Small rounded projection
The cells are uninucleate
Smooth Mucsle Cardiac Muscle
The tissue lines hollow organs
Smooth Muscle
The cells lack striations and sarcomeres
Smooth muscle
Facet
Smooth, nearly flat articular surface
What ion enters the muscle cell upon activation of the acetylcholine receptors?
Sodium
Which cranial bone spans the width of the cranial floor?
Sphenoid
Cervical Vertebrae
Spine (neck region) consists of seven bones (C1-C7 vertebrae), which are separated from one another by intervertebral discs
What is labeled "4" (Skeleton)
Sterum
Skeletal Muscle
Striated Multiple Nuclei Large Cylinder Voluntary
Cardiac Muscle
Striated One Nuclei Branching Chains Involuntary
Head
Structure supported on neck
Thoratic vertebrae
T1-T12 - 12 bones in the back that articulate with the ribs
What is labeled "27" (Skeleton)
Talus
What is labeled "15" (Skeleton)
Tarsal
A five-year-old boy is struck in the head with a baseball. The physician identifies in an MRI that the petrous ridge has shifted superiorly. What bone contains the petrous ridge?
Temporal
What is labeled "2" (Skeleton)
Temporal
What is the structure labeled "C"? (Skull Sagittal View)
Temporal
Fissure
A narrow opening
The primary spinal curves
Accommodate the thoracic and abdominopelvic viscera
Which of the following is both a protein and a structural component of thin filaments?
Actin
Sinus
Air-filled cavity
Ramus
Armlike projection
What is labeled "H" (Long Bone Anatomy)
Articular Cartilage
The cervical vertebra that allows you to nod your head is the __________.
Atlas
What is the structure labeled 1A ? (Spine)
Atlas
What is the structure labeled 1B ? (Spine)
Axis
Which of the following are members of the hamstring group?
Biceps femoris, semitendinosus, and semimembranosus
What happens when a patient is poisoned by botulism?
Blurry, double vision
What is labeled "28" (Skeleton)
Calcaneus
Which of the following tarsal bones transfers most of the body's weight to the ground when standing?
Calcaneus
Meatus
Canal-like passageway
The cells are striated in appearance
Cardiac Muscle Skeletal Muscle
The primary function to generate tension
Cardiac Muscle Skeletal Muscle Smooth Muscle
The cells are involuntary
Cardiac Muscle Smooth Muscle
The bones of the wrist include the
Carpal bones
What is labeled "8" (Skeleton)
Carpus
What bones make up the pectoral girdle
Cavicle and scapula
What is label "A" (Bone Structure)
Central Canal
What is the red spine region?
Cervical
In a ________ muscle, the fascicles are concentrically arranged around an opening.
Circular
What is labeled "19" (Skeleton)
Clavicle
What is labeled "K" (Long Bone Anatomy)
Compact Bone
What is labeled "M" (Long Bone Anatomy)
Compact Bone
What is the purple spine region?
Conceal
What is the structure labeled "C"? (Skull Frontal View)
Inferior Nasal Concha
Matrix
Inorganic salts deposited in organic ground substance
What is labeled "11" (Skeleton)
Ischium
Lumbar vertebrae
L1-L5 lower back
What is the structure labeled "E"? (Skull Sagittal View)
Lacrimal
Which bone is NOT considered to be part of the cranium?
Lacrimal bone
What is label "B" (Bone Structure)
Lacunae
What is label "C" (Bone Structure)
Lamella
Tuberosity
Large rounded projection; may be roughened
Trochanter
Large, irregularly shaped projection
Give the origins of the heads of the triceps brachii.
Lateral surface of the humerus, infraglenoid tubercle of scapula, posterior surface of the humerus
Concentric Lamella
Layers of bony matrix around a central canal
What type of bone has a shaft (diaphysis) and two expanded knoblike ends (epiphyses)?
Long Bone
Central Canal
Longitudinal canal carrying blood vessels, lymphatics, and nerves
What is the yellow spine region?
Lumbar
The names of the muscles can indicate all of the following except
The collagen content of the muscle
What is labeled "J" (Long Bone Anatomy)
Yellow Marrow
What is the structure labeled "D"? (Skull Sagittal View)
Zygomatic
The temporalis muscle passes through the
Zygomatic arch
