Cerebrospinal fluid, synovial fluids – composition, formation and flow; Joints

Multiple Choice Questions (MCQs)

1. What is the primary component of cerebrospinal fluid (CSF)?
   • A) Proteins
   • B) Electrolytes
   • C) Water
   • D) Glucose
     Answer: C) Water
2. Where is cerebrospinal fluid primarily produced?
   • A) Subarachnoid space
   • B) Choroid plexus
   • C) Synovial membrane
   • D) Blood plasma
     Answer: B) Choroid plexus
3. Which of the following is a function of synovial fluid?
   • A) Nutrient absorption
   • B) Red blood cell production
   • C) Lubrication of joints
   • D) Hormone transport
     Answer: C) Lubrication of joints
4. What type of joint is characterized by a ball-and-socket structure?
   • A) Hinge joint
   • B) Pivot joint
   • C) Condyloid joint
   • D) Ball and socket joint
     Answer: D) Ball and socket joint
5. Which electrolyte is NOT typically found in cerebrospinal fluid?
   • A) Sodium (Na⁺)
   • B) Calcium (Ca²⁺)
   • C) Iron (Fe²⁺)
   • D) Chloride (Cl⁻)
     Answer: C) Iron (Fe²⁺)
6. What is the primary role of hyaluronic acid in synovial fluid?
   • A) Nutrient transport
   • B) Viscosity and lubrication
   • C) Immune response
   • D) Bone growth
     Answer: B) Viscosity and lubrication
7. Which type of joint allows for rotational movement?
   • A) Hinge joint
   • B) Ball and socket joint
   • C) Pivot joint
   • D) Saddle joint
     Answer: C) Pivot joint
8. What is the main function of the arachnoid granulations?
   • A) Produce cerebrospinal fluid
   • B) Reabsorb cerebrospinal fluid
   • C) Protect the brain
   • D) Provide nutrients
     Answer: B) Reabsorb cerebrospinal fluid
9. Which structure lines the joint capsule and produces synovial fluid?
   • A) Cartilage
   • B) Synovial membrane
   • C) Choroid plexus
   • D) Ependymal cells
     Answer: B) Synovial membrane
10. What type of joint is the knee classified as?
    • A) Hinge joint
    • B) Ball and socket joint
    • C) Gliding joint
    • D) Pivot joint
      Answer: A) Hinge joint

True/False Questions

1. Cerebrospinal fluid is produced in the synovial membrane.
   Answer: False
2. Synovial fluid contains a high concentration of proteins.
   Answer: False
3. The choroid plexus is responsible for the production of cerebrospinal fluid.
   Answer: True
4. Joints are classified only by their structural characteristics.
   Answer: False
5. Hyaluronic acid contributes to the viscosity of synovial fluid.
   Answer: True
6. The knee joint allows for rotational movement.
   Answer: False
7. Cerebrospinal fluid provides cushioning for the brain and spinal cord.
   Answer: True
8. The arachnoid granulations are involved in the secretion of synovial fluid.
   Answer: False
9. Synovial joints are characterized by a joint cavity filled with synovial fluid.
   Answer: True
10. Electrolytes in cerebrospinal fluid include sodium and potassium.
    Answer: True

Fill in the Blanks

1. The primary component of cerebrospinal fluid is __________.
   Answer: water
2. Cerebrospinal fluid is produced in the __________ of the brain.
   Answer: choroid plexus
3. The main function of synovial fluid is to provide __________ for joints.
   Answer: lubrication
4. __________ acid is a key component that contributes to the viscosity of synovial fluid.
   Answer: Hyaluronic
5. The type of joint that allows for flexion and extension is called a __________ joint.
   Answer: hinge
6. The __________ granulations are responsible for reabsorbing cerebrospinal fluid into the bloodstream.
   Answer: arachnoid
7. Synovial fluid is produced by the __________ membrane.
   Answer: synovial
8. The knee joint is classified as a __________ joint.
   Answer: hinge
9. Cerebrospinal fluid helps to protect the __________ and spinal cord.
   Answer: brain
10. Synovial joints are characterized by a joint __________ filled with synovial fluid.
    Answer: cavity