Lesson 2 | Prelim Flashcards
Review of CELL SHAPE, TISSUE, LAYERS, ORGAN, AND ORGAN SYSTEM RADIOGRAPHIC IMAGING
Cell shape of squamous cells
Thin, flat, and scaly
Function of squamous cells
Allows rapid passage of substances through its thin shape
It is well adapted for diffusion/filtration of water, gases, and other substances
Squamous Cells
How many layers and what are the layers of the skin?
2 layers:
1. Epidermis
2. Dermis
Layer deep to the dermis
SUBCUTANEOUS LAYER/ HYPODERMIS
First imaging modality of choice/ standard for examining the skin
ULTRASOUND
Standard for imaging skeletal system/ bones
CT Scan
Standard for imaging underlying soft tissue structures
MRI
Cell shape of skeletal muscle cells
Long and c ylindrical
Other term for skeletal muscle cells
Muscle fiber
Function of skeletal muscle cells
Allows movement of body through muscle contraction (The elongated shape of the cell allows it to contract and relax which generates the movement)
Pigmented area in the skeletal muscle cell
Nucleus
Horizontal lines in the muscle fiber
Striations
Muscle found in the shoulder
Deltoid muscle
Function of the deltoid muscle
Moves the arm in different directions (Movement is made possible because of the presence of many muscle fibers found in the deltoid)
4 imaging modalities for the muscular system
General Image Radiography (eg. Soft Tissue Technique)
MRI
CT Scan
Ultrasound
An imaging modality that plays limited role in evaluation of suspected abnormalities in the muscles, usually just a soft tissue swelling
General Image Radiography
General Image Radiography plays limited role in evaluation of suspected abnormalities in the muscles, usually just a —
soft tissue swelling
A simple radiographic examination wherein usually, the technical exposure factors are adjusted in order to allow the soft tissues to be examined
Soft tissue technique
Cell shape of the bone cell
Stellate
Function of the bone cell
Dictates bone remodeling and repair (made possible through the presence of branches/ processes which communicate with neighboring osteocyte or other cells)
Most common type of bone cell
Osteocyte
Primary bone found in mature bones
Osteocyte
Bones found in the hand
Phalanges
Metacarpals
Carpals
Distal portion of the bones in the hands
Phalanges
Proximal to the phalanges
Metacarpals
What are the carpals also known as?
Wrist bones
Most proximal part of the bone hand
Carpals
3 imaging modalities for the skeletal system
GENERAL RADIOGRAPHY/ X-RAY
CT SCAN
BONE DENSITOMETRY
Can provide a more detailed image of the bones, but it is more expensive
CT Scan
First imaging modality of choice for skeletal system/ bones
General Radiography/ X-ray
Cell shape of the spinal cord
Stellate or Globular
Function of the spinal cord
Transmit electric signals (branches/ processes emerging from its body: responsible for its function)
Transverse cut to a structure/ tissue
Cross section
Butterfly structure/ inner part of the spinal cord
Gray matter
Surrounding structure outside the butterfly shape
White matter
3 imaging modalities for the nervous system
FLUOROSCOPY/ FLUOROSCOPE (eg. MYELOGRAPHY/ MYELOGRAM)
CT SCAN
MRI
2 Types of cells found in the lungs
- THIN-SHAPED
- CUBOIDAL/ ROUNDED
Cell found in the lungs that allows substances to easily pass through just like gas, which relates to its function of gas exchange
Thin-shaped cells
Ccell found in the lungs wherein its width and length are equal, giving it a larger surface area which improves it’s function of secretion
Cuboidal/ Rounded cells
Function of the lungs cells
Site of gas exchange
Secrete alveolar fluid
Lobes of the lungs
RIGHT LOBES
1. Superior
2. Middle
3. Inferior
LEFT LOBES
1. Superior
2. Inferior
4 imaging modalities for the respiratory system
GENERAL IMAGE RADIOGRAPHY (eg CHEST X-RAY)
MRI
CT SCAN
ULTRASOUND
Imaging test that uses X-ray to look at the structure and organs of the chest, mainly just the lungs and silhouette/shadow of the heart
CHEST X-RAY
Soft tissue structures can be much more appreciated using this imaging modality
MRI
Cell shape of the stomach
Columnar
Function of the stomach
- Absorb nutrients from the food taken in
- Secrete digestive enzymes that help in the break down of food
Shape, location, and function of the stomach
- J-shaped
- Located directly inferior to the diaphragm
- Functions to digest food
Most superior part of the stomach
Fundus
Entry point of the stomach
Cardia
Largest section of the stomach
Body
Lowermost part of the stomach
Antrum
Opening between the stomach and the small intestine
Pylorus
5 imaging modalities of the digestive system
UPPER GASTROINTESTINAL SERIES (u.g.i.s)
CT SCAN
MRI
FLUOROSCOPY/ FLUOROSCOPE
ULTRASOUND
UGIS is a radiographic examination of the (1), which involves the (2), (3), and (4)
- upper gastrointestinal (GI) tract
- esophagus
- stomach
- duodenum
Cell shape of RBCs
Biconcave/ Discoidal
Other term for RBCs
Erythrocytes
Function of the RBCs
Transport oxygen to the diff parts of the body
It is found at the center of red blood cells which allows it to maximize oxygen-carrying capacity, and helps the cell to be flexible and twist/ be deformed repeatedly at it makes its way to the narrow, twisted blood vessel
Depression
Cell shape of WBCs
Irregular
Other term for WBCs
Leukocytes
Function of the WBCs
Engulf/ kill bacteria that enter the blood to prevent diseases
What specimens have the same layers?
Vein and artery
Innermost layer of the blood vessel
Tunica intima
Outermost layer of the blood vessel
Tunica Adventitia
Layers of the blood vessels
Tunica Intima
Tunica Media
Tunica Adventitia
4 imaging modalities for the cirsculatory system
FLUOROSCOPY/ FLUOROSCOPE (eg. CEREBRAL ANGIOGRAPHY)
CT SCAN ANGIOGRAPHY
MRI ANGIOGRAPHY
VASCULAR ULTRASOUND
Imaging of the vascular system of the brain or to examine the blood vessels found in the brain for abnormality such as aneurysm
Cerebral angiography
Radiographic examination of the blood vessels after the injection of a contrast medium or a dye, which highlights the different blood vessels in the body
Angiography
An ultrasound that images the blood vessels
Vascular ultrasound
An ultrasound that images the heart
2D Echo test
Cell shape of the thyroid gland
Cuboidal to low columnar
Function of the thyroid gland
Thyroid stimulating hormone (TSH)
Shape of the thyroid gland
Butterfly-shaped
Parts of the thyroid gland
- Right lobe
- Left lobe
- Isthmus
4 imaging modalities for the endocrine system
NUCLEAR MEDICINE (eg. NORMAL UPTAKE)
CT SCAN
MRI
ULTRASOUND
Imaging test that uses a radioactive iodine tracer to examine the structure and function of the thyroid gland
Normal uptake
Used in determining the size, shape, and structural function of an organ that is usually unattainable with other imaging procedures
Radioactive iodine tracer
Cell shape of the kidney gland
Squamous or Cuboidal
Function of the kidney gland
- Filtration of blood (Squamous)
- Secretion of hormones
Shape of the kidney gland
bean-shaped
Main parts of the kidney gland
- Renal cortex
- Renal medulla
- Capsule
Outermost covering of the kidney
Capsule
5 imaging modalities for the endocrine system
FLUOROSCOPY/ FLUOROSCOPE
ULTRASOUND
CT SCAN
MRI
NUCLEAR MEDICINE
Cell shape of the sprem cell
Oval shaped head w/ a tail
Function of the sperm cell
- Tail helps in faster travel
- Oval-shaped head helps penetrate the egg in order to fertilize it
Paired oval glands found in the scrotum
Testes/ Testicles
Responsible for producing sperm cells
Testes/ Testicles
Ultrasound examination of the prostate
PROSTATE ULTRASOUND
Ultrasound examination through the abdomen
Transabdominal
Ultrasound examination through the rectum
Transrectal
3 imaging modalities for the reproductive system
PROSTATE ULTRASOUND
MRI
CT SCAN
One of the accessory structures of the eyes
Lacrimal apparatus/ Lacrimal system
Lacrimal system is a group of structures that (1) and (2) (3) or tears
- produces
- drains
- lacrimal fluids
Function of the lacrimal fluid
Protect and cleanse, lubricate and moistens the eyeballs
3 imaging modalitie sfor special senses
FLUOROSCOPY/ FLUOROSCOPE (eg. DACRYOCYSTOGRAPHY)
MRI
CT SCAN
Denote radiologic examination of the nasolacrimal drainage system
DACRYOCYSTOGRAPHY