A&P Lab Exam #2

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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


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