Human Anatomy Flashcards by Fetalvero Faye Lindsie

“”Wing-like” alae connect laterally with hip bones (forms sacroiliac joints)

sacrum

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collection of 8 bones which hold and protect the brain

Cranium

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has depressions that accept the occipital codyles (“yes nod”)

C1 - Atlas

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The wall of a long bone consists of what tissue?

dense tissue

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bone builders

osteoblasts

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how many bones does the thoracic curvature have

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Thought to be left over from when our ancestors had tails

coccyx

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The skeletal system provides what for the body?

support and protection

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skeleton of the extremities

Appendicular Skeleton

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Found in skeleton where strength, compactness and limited movement are desired

Short bones

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High water content

intervertebral discs

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protect lungs and heart; gives intercostal muscles a hard surface to move against for breathing

ribs

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What are the 2 paired bones in the Cranium

Parietal Bones
Temporal Bones

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Usually small and round

Sesamoid (Round) Bones

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Begins where skull meets spine

Cervical Curvature

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first 7 pairs of ribs are called?

true ribs

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What are the flat bones in the Cranium?

Frontal
Occipital
Parietal

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pair of flat bones located on either side of the head

Parietal Bones

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protects brain

skull

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protect spinal chord; also serves to keep skeleton upright

vertebrae

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Each bone is made of a body and two extremities. What are they called?

Diaphysis and epiphysis

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How many bones does an adult have

206 bones

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thin curved bones which project from interior of nasal cavity

inferior conchae

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production of red blood cells, occurs within the marrow cavities

hematopoiesis

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the sternum is surrounded by what?

costal cartilage

sends weight down to pelvis, where it is transmitted though the legs

spinal column

3 parts of the Axial Skeleton

Skull Vertebrae Ribs

cheekbones

zygomatic bones

what are the 5 functions of the skeletal system

Support Protection Hematopoiesis Movement Storage

How many total ribs do we have?

provides solid axis for muscles to act against, creating motion

storage

the coccyx is also known as the?

tailbone

Supports body

spinal column

forms roof of nasal cavity

ethmoid bone

how many vertebraes does the Lumbar Curvature have

5 vertebraes

Location for rib attachment

sternum

The process by which bones increase in diameter is called?

Appositional growth

Increase in physical exertion on bone tissue actually increases?

bone density and strength

central skeleton that protects and supports vital organs

Axial Skeleton

What are the type of bones?

Long bones short bones flat bones Irregular bones Sesamoid bones

where disc protrudes from spine

Herniated (Slipped) Disc

factors which contribute to bone growth

Nutrition Exposure to sunlight Hormonal secretion Physical exercise

2 divisions of the skull

Cranium Facial Bones

unpaired flat bone that makes up the forehead and upper part of the eye sockets

Frontal Bone

skeletal muscles, attached to the bones by tendons, use bones as levers to move the body and its parts

movement

how many bones does a baby have?

300 bones

acts as pivot point for skull (“no” head shake)

C2 - axis

Examples of Irregular Bones

vertebrae sphenoid hyoid

What are the Facial Bones

Mandible Maxillary Bones (maxillae) Palatine Processes Zygomatic Bones Lacrimal Bones Ethmoid Bone Nasal Bones Vomer Inferior Conchae

What are the 4 divisions of the spinal column?

Cervical Curvature thoracic curvature lumbar curvature pelvic - sacrum - coccyx

1 bone formed by fusion of 3 vertebrae

Coccyx

Found in the limbs

Long bones

Fusion of three bones

sternum

unpaired flat bone found at the back of the skull

Occipital Bone

UV light on the skin causes what Vitamin production?

Vitamin D

Increased blood calcium triggers release of what?

Calcitonin

Interconnected system of bones, ligaments and tendons

Skeletal System

What are the Cranium Bones?

Ethmoid Bone Temporal Bones Sphenoid Bone Frontal Bone Occipital Bone Parietal Bones

connects skull to pelvis

spinal column

inferior section of orbital bones provides passageway for tears

lacrimal bones

where are true ribs attached to

attached directly to sternum

What are the irregular bones in the cranium?

Ethmoid Temporal Sphenoid

3 parts of the sternum

manubrium body xiphoid

paired bone, located under each of the parietal bones. Irregular bone

Temporal Bone

intervertebral discs Provides ____; reduces _____

cushioning; shock

lower jaw bone

mandible

Example of Round Bone

Patella (knee cap)

bones such as skull provide barrier of protection from external forces

protection

Bones which don’t fit into other categories due to irregular shapes

Irregular Bones

Makes up posterior wall of pelvis

sacrum

2 divisions of the Skeletal System

Axial Appendicular

divides nasal cavity in half

vomer

Central canal called _____ is filled with marrow

medullary canal

Made of bones which connect and protect heart and lungs

Bony Thorax

point of attachment of ribs

costal demifacet

what are the last 5 pairs of the ribs called?

false ribs

bone-destroying cells

osteoclasts

How many vertebraes does the cervical curvature have?

As you age, water content ___, drying discus

lowers

This process of long-bone growth is controlled by which hormones

growth and sex hormones

The bony thorax is composed of what parts?

Ribs Costal Cartilage Sternum

forms bridge of nose

nasal bones

unpaired bone located in front of the sphenoid bone that forms a part of the nasal cavity

Ethmoid Bone

the spinal column has how many total bones?

26 total bones

2 examples of short bones

Tarsus (ankle) Carpus (wrist)

fuse together to form upper jaw

Maxillary Bones (maxillae)

Where to each pair of ribs connect to?

A thoracic vertebrae

Bone production process gives bone extreme tensile and compressional strength

ossification

Sturdiest because under the most stress

lumbar curvature

Pads of cartilage between each vertebrae

intervertebral discs

14 bones that make up the face, all but 2 are paired

Facial Bones

1 bone composed of 5 fused vertebrae

sacrum

what are the last two pair of ribs?

they are floating / no sternal attachment

surrounds and protects spinal cord

spinal column

Used in sports where protection or muscular attachment is desired

Flat Bones

unpaired irregular bone located just below the frontal bone

Sphenoid Bone

directly posterior to maxillae; forms rear of hard palate

palatine processes

where do false ribs connect to?

they have indirect or no attachment

Examples of Flat bones

Most bones of the skull Ribs Sternum

fat is stored in the internal cavities of bones; store house for minerals (calcium and phosphorus)

storage

Human Anatomy Flashcards

(100 cards)