Skeletal System
The average number of bones in the adult skeleton is __________.
206
From superior to inferior, how many individual vertebrae are there of each type?
7; 12; 5; 5; 4
What is a sesamoid bone?
A bone that forms within some tendons in response to stress
Which of the following is only found on the axis vertebra?
Dens (odontoid process)
Which of the bones below does not belong to the appendicular skeleton?
Ethmoid
Which of the following bones is a single unpaired bone?
Ethmoid
Which of the following is not considered a weight-bearing bone?
Fibula
A young girl falls off her bike and lands on her hand, breaking the medial bone of her antebrachium. Which bone did she break?
Her ulna
A 72-year-old female patient with a history of mild osteoporosis is experiencing back stiffness, pain, and fatigue, especially in the thoracic region. Examination reveals pronounced rounding of the upper back. What is your diagnosis?
Hyperkyphosis
When you are sitting, your body weight rests on which of the following?
Ischial tuberosity
Which of the following is not true of a thoracic vertebra?
It has a pair of transverse foramina.
Which of the following are not considered facial bones?
Parietal bones
Which of the following is a sesamoid bone?
Patella
Which of the following is the most common spinal curvature deformity?
Scoliosis
Why does an adult not have as many bones as a child?
Some separate bones gradually fuse with age.
Which of the following sutures connects the greatest number of bones?
Squamous suture
What are the three auditory ossicles?
The malleus, incus, and stapes
Which of the following do costal cartilages connect?
The ribs with the sternum
Which of the following is not part of the pectoral girdle?
The sacroiliac joint
In a herniated disc, the ring of fibrocartilage called the __________ ruptures and the __________ oozes out.
anulus fibrosus; nucleus pulposus
The acetabulum articulates with the __________.
femur
A hole through a bone that usually allows passage for nerves and blood vessels is called a(n) _________.
foramen
The __________ is a U-shaped bone that sits above the larynx yet does not articulate with any other bone.
hyoid bone
The upper part if the hip bone is called ___________.
ilium
There are __________ bones in a newborn compared with the average number in an adult.
more
A newborn passes through the__________ of its mother during birth.
pelvic outlet
The acromion is an anatomical feature of the __________.
scapula
The glenoid cavity of the __________ articulates with the head of the __________.
scapula; humerus
The __________ houses the pituitary gland (hypophysis) and is found in the __________.
sella turcica; sphenoid bone
Fontanelle are __________ in an infant.
spaces between the unfused cranial bones
The __________ belongs to the thoracic cage, whereas the __________ belongs to the pectoral girdle.
sternum; clavicle
All the bones below belong to the axial skeleton, except the __________, which belongs to the appendicular skeleton.
sutures
Rib 7 is a __________ rib.
true rib