Biology 233 - A&P Chapter 5

Which digit is the radius closest to?

1 ~ The radius runs parallel to the ulna on the same side as the thumb

Which of the following digits contain only 2 phalanges?

1 ~ the thumb

How many phalanges are located in the hand?

14 ~ Three phalanges make up each finger (4 x 3) except the thumb which contains 2 phalanges.

How many bones make up the nasal septum?

2. composed of the perpendicular plate of the ethmoid and the vomer.

The adult hip bone consists of _____ regions.

3

How many vertebrae make up the cervical region of the vertebral column?

7

How many pairs of ribs articulate directly with the sternum?

7 There are 7 pairs of true ribs in the human body. True ribs articulate directly with the sternum.

Name the number of tarsals.

7 ~ The tarsus is made up of 7 bones that compose the ankle and the posterior portion of the foot.

How many carpals make up the wrist?

8 The wrist is comprised of 8 carpals.

cranial bones

8 frontal, parietal, temporal, occipital, sphenoid, ethmoid

The sella turcica is best described as

A depression in the central region of the sphenoid bone. It houses the pituitary gland.

Identify the articulation site for the femur.

Acetabulum ( the socket for the femur. It is formed by a fusion of all 3 regions that make up the hip bone.)

Which region of the hip bone articulates with the sacrum?

Auricular surface of the ilium

Identify a unique characteristic of a typical cervical vertebra.

Bifid spinous process

Identify the central portion of the sternum.

Body The body of the sternum is the largest region, occupying the space between the manubrium and the xiphoid process.

Another name for the axis is:

C2

Identify the anatomical term for the "heel bone".

Calcaneus

Identify the bones that make up the wrist.

Carpals ~ Eight carpals make up the wrist.

Which region of the vertebral column contains the smallest vertebrae?

Cervical regionIdentify the location of the ethmoid bone.

Which of the following structures pass through the foramen magnum?

Cranial nerve XI The accessory nerve Vertebral artery

Identify the recessed area surrounding the crista galli.

Cribriform plates

Identify the landmark that projects superiorly into the floor of the skull and serves as a site of attachment for the meninges.

Crista galli

Identify the hole that marks the opening of the ear canal on the superficial surface of the skull.

External acoustic meatus

Name bone that articulates with the proximal end of the tibia.

Femur

Identify the bone found lateral to the tibia.

Fibula ~ the tibia and fibula lie parallel to one another between the knee and ankle.

What part of the nasal cavity is formed by the nasal septum?

Forms the medial wall of the nasal cavity.

head of the ulna

Found at the distal end of the bone.

Which of the following bones is unpaired?

Frontal There is only one frontal bone. It forms the anterior portion of the cranium (the forehead region).

Shin splints occur as a result of pulled tendons and muscles of the lower leg. What is the best way to avoid shin splints?

Gradually build up the workout schedule and do more cross training in order to avoid doing too much too fast.

Identify the indentation that is inferiorolateral to the auricular surface.

Greater sciatic notch

Identify the region of the radius that articulates with the ulna.

Head

Name the type of connective tissue that anchors the ribs onto the sternum.

Hyaline cartilage

The ridge like superior edge of the ilium is known as the _____.

Iliac crest

Which of the following is the largest region of the hip bone?

Ilium

Identify the location of the ethmoid bone.

In between the orbits

Individual vertebrae articulate with each other forming the vertebral column. Identify the part of a vertebra that articulates immediately with the vertebra below it.

Inferior articular processes

Which of the following structures would not be found within a vertebral foramen?

Intervertebral discs

Which landmark of the hip bone can be felt on a hard chair?

Ischial tuberosity

Which of these regions of the vertebral column would be most accessible from a posterior surgical approach?

Lamina

Identify the region of the sphenoid bone that contains the optic canal.

Lesser Wings

Identify the landmark found on the diaphysis of the femur.

Linea aspera

What type of bones are the phalanges?

Long Although the phalanges are small in size, their elongated shape qualifies them as long bones.

Identify the region of the temporal bone that articulates with the lower jaw.

Mandibular fossa

Identify the shield shaped top of the sternum.

Manubrium. The manubrium is the superior most region of the sternum. It articulates with both the clavicle and the first rib.

The flat surface of the tibia that articulates with the femur is the superior surface of which landmark?

Medial and lateral condyles

Identify the best description for the location of the head of the femur.

Medial and proximal

Which part of the leg does the tibia form?

Medial leg

Identify the anatomical landmark resulting in a noticeable bump found on the medial surface of the ankle.

Medial malleolus

Identify the bones that make up the palm of the hand.

Metacarpals

Identify the bones that make up the middle portion of the foot.

Metatarsals

Identify the region of the ulna that articulates with the humerus when the forearm is in full extension.

Olecranon process

Which landmark is found on the anterior surface of the femur?

Patellar surface

Identify the part of the ethmoid bone that contributes to the nasal septum.

Perpendicular plate

Which part of the ethmoid bone forms part of the nasal septum?

Perpendicular plate

What type of joint is formed between the radius and ulna?

Pivot

Which bony landmarks can be palpated on the anterior surface of the body, close to the midline?

Pubic tubercles

What region of the vertebral column does the hip bone articulate with?

Sacral region

Identify the suture found between the 2 parietal bones.

Sagittal suture

The nasal septum occupies which anatomic plane?

Sagittal. The nasal septum lies in a midsagittal plane, dividing the nasal cavity into right and left halves.

Identify the region of the sphenoid bone in contact with the pituitary gland.

Sella turcica

The sphenoid bone contains

Sinuses

Which cranial bone spans the width of the cranial floor?

Sphenoid

Name the vertebral projection oriented in a median plane.

Spinous process

Identify the region of the temporal bone found superior to the external acoustic meatus that articulates with the parietal bone.

Squamous part

Identify the landmark on the temporal bone that is a pointy spine.

Styloid process

Identify the projection found on distal end of the ulna.

Styloid process

Which of the following regions of the radius help form the wrist joint?

Styloid process

Identify the type of movement enabled by the articulation between the radius and ulna at the elbow.

Supination

Which of the following bone structures exist at the fusion point between two cranial bones?

Suture

Identify the tarsal that articulates with the tibia and fibula.

Talus

Identify the region of the femur that forms part of the hip joint.

The head of the femur is the ball portion of the hip joint, which articulates with the acetabulum of the hip bone which forms the socket.

The condition known as a "fractured hip" is most often a break in the femur. Where is the femur particularly susceptible to a fracture?

The neck

Identify the cranial nerve that passes through the olfactory foramina.

The olfactory nerve (CN I)

Which of the following is a NOT a likely explanation for the increased occurrence of hip fractures in the elderly?

The proximal epiphysis of the femur has a preponderance of spongy bone, which is weaker than compact bone.

Which digit is composed of only two phalanges?

Thumb The thumb contains two phalanges, a proximal and distal phalanx.

Identify the blunt elevation found on the anterior surface of the tibia between the lateral and medial condyles.

Tibial tuberosity

Identify a lateral projection of a vertebra.

Transverse process. The transverse processes of a vertebra project laterally from the junction of the lamina and pedicle

Foramina located in the _____ is a characteristic of cervical vertebrae.

Transverse processes

Identify the landmark that is unique to the femur.

Trochanter ~ The greater and lesser trochanters are unique to the femur.

Identify the primary region of the ulna that forms the hinge joint with the humerus.

Trochlear notch

Which bone forms the inferior portion of the nasal septum?

Vomer The vomer is a small facial bone that runs superiorly on midline to articulate with the perpendicular plate of the ethmoid.

What part of the sternum is palpated prior to giving CPR?

Xiphoid Process

Identify the region of the temporal bone that forms part of the zygomatic arch.

Zygomatic process

The ethmoid bone is part of the

axial skeleton

Which part of a vertebra is known as the centrum?

body

Where in the skeleton is the ulna located in reference to the humerus?

distal to the humerus in the upper arm

Identify the location of the sphenoid bone.

floor of the skull

The projection at the inferior end of the greater sciatic notch is the

ischial spine

Where is the radius located in reference to the ulna?

lateral

What type of bone is a phalanx?

long ~ the elongated shape of the phalanges make them long bones, even though the phalanges are small in size.

Which of theses projections of the ethmoid bone are most visible in the nasal cavity?

middle nasal conchae

facial bones (14)

nasal (2), zygomatic (2), maxillary (2), palatine (2), lacrimal (2), inferior conchae (2), vomer, mandible

Identify the large hole found in this bone.

obturator foramen

The tiny holes in the cribriform plate are

olfactory foramina